{"id":5083,"date":"2019-12-26T20:19:19","date_gmt":"2019-12-26T19:19:19","guid":{"rendered":"https:\/\/www.presticebdt.com\/?p=5083"},"modified":"2023-09-23T13:08:54","modified_gmt":"2023-09-23T11:08:54","slug":"lift-and-drag-force-generation-in-racing-cars","status":"publish","type":"post","link":"https:\/\/www.presticebdt.com\/el\/lift-and-drag-force-generation-in-racing-cars\/","title":{"rendered":"\u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b1 \u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1"},"content":{"rendered":"<section  class='av_textblock_section av-k4mz0ibq-752f8c5b3f221dac783086fea33e7548'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 style=\"text-align: center;\">\u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b1 \u03b1\u03b3\u03c9\u03bd\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1<\/h2>\n<h3 style=\"text-align: center;\">\u039f\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b5\u03be\u03ae\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03ad\u03bb\u03be\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2<\/h3>\n<h4>\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 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<strong>\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ad\u03bb\u03be\u03b7\u03c2<\/strong> \u03b8\u03b1 \u03b5\u03b9\u03c3\u03b1\u03c7\u03b8\u03b5\u03af. \u0394\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03bf\u03c5 \u03cc\u03c4\u03b9 \u03c0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2, \u03bf \u03b1\u03bd\u03b1\u03b3\u03bd\u03ce\u03c3\u03c4\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ae\u03b4\u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc\u03c2 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03bb\u03b5\u03af\u03c8\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1. \u0391\u03c2 \u03bc\u03b9\u03bb\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03b4\u03cd\u03bf \u03b1\u03c0\u03cc \u03c4\u03b1 \u03c0\u03b9\u03bf \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03ad\u03c3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7\u03c2 \u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae\u03c2!<a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_Lift.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5098\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_Lift.jpg\" alt=\"\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03c0\u03b9\u03c3\u03b8\u03ad\u03bb\u03ba\u03bf\u03c5\u03c3\u03b1\u03c2\" width=\"336\" height=\"217\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_Lift-300x194.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_Lift.jpg?lossy=2&amp;strip=1&amp;webp=1 699w\" sizes=\"(max-width: 336px) 100vw, 336px\" \/><\/a><\/p>\n<h3>\u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2: \u03b7 \u03b5\u03be\u03ae\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2.<\/h3>\n<p>\u0393\u03b5\u03bd\u03b9\u03ba\u03ac, \u03b7<strong> \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7<\/strong> \u03c4\u03bf\u03c5 \u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd (\u03c0.\u03c7. \u03b1\u03ad\u03c1\u03b1) \u03bc\u03b5 \u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 (\u03c0.\u03c7. \u03b1\u03b5\u03c1\u03bf\u03c4\u03bf\u03bc\u03ae) \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc. \u0393\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03ae \u03b4\u03c1\u03ac\u03c3\u03b7\u03c2-\u03b1\u03bd\u03c4\u03af\u03b4\u03c1\u03b1\u03c3\u03b7\u03c2, \u03b7 \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03bc\u03b5 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03bf \u03c0\u03c1\u03cc\u03c3\u03b7\u03bc\u03bf \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc \u03c0\u03bf\u03c5 \u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9. \u0397 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03c3\u03b1 \u03b1\u03c5\u03c4\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03bf\u03c5\u03c3\u03b1\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c5\u03b8\u03c5\u03b3\u03c1\u03b1\u03bc\u03bc\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03c1\u03bf\u03ae \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 <strong>\u0394\u03a5\u039d\u0391\u039c\u0397 \u03a3\u0391\u03a1\u03a9\u03a3\u0397\u03a3<\/strong>, \u03b5\u03bd\u03ce \u03b7 \u03ba\u03ac\u03b8\u03b5\u03c4\u03b7 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b5\u03cd\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c1\u03bf\u03ae\u03c2 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 <strong>\u0394\u03a5\u039d\u0391\u039c\u0397 \u0391\u039d\u03a5\u03a8\u03a9\u03a3\u0397\u03a3<\/strong>. \u03a6\u03c5\u03c3\u03b9\u03ba\u03ac \u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03bf\u03c4\u03b9\u03bc\u03ce\u03bc\u03b5\u03bd\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2, \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03ac\u03b8\u03c1\u03bf\u03b9\u03c3\u03bc\u03b1 \u03c4\u03c9\u03bd <strong>\u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2<\/strong> \u03ba\u03b1\u03b9 <strong>\u03b4\u03b9\u03b1\u03c4\u03bc\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03ac\u03c3\u03b5\u03b9\u03c2<\/strong> \u03c0\u03bf\u03c5 \u03b4\u03c1\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u038c\u03c0\u03c9\u03c2 \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1, \u03c4\u03bf \u03bf\u03bb\u03bf\u03ba\u03bb\u03ae\u03c1\u03c9\u03bc\u03b1 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b4\u03c1\u03ac\u03c3\u03b5\u03c9\u03bd \u03bc\u03b1\u03c2 \u03b4\u03af\u03bd\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 (\u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c1\u03bf\u03c0\u03ae) \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03c3\u03ce\u03bc\u03b1.<\/p>\n<p><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Dynamic_equation.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5091 size-full\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Dynamic_equation.jpg\" alt=\"\u0395\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c1\u03b5\u03c5\u03c3\u03c4\u03ce\u03bd Navier Stokes\" width=\"590\" height=\"153\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Dynamic_equation-300x78.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Dynamic_equation.jpg?lossy=2&amp;strip=1&amp;webp=1 590w\" sizes=\"(max-width: 590px) 100vw, 590px\" \/><\/a><\/p>\n<h3>\u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2: \u03bf \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2 \u03bd\u03cc\u03bc\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae\u03c2.<\/h3>\n<p>\u0394\u03b5\u03bd \u03b5\u03af\u03bc\u03b1\u03c3\u03c4\u03b5 \u03b5\u03b4\u03ce \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c6\u03b9\u03b5\u03c1\u03ce\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c0\u03bf\u03bb\u03cd \u03c7\u03c1\u03cc\u03bd\u03bf \u03c3\u03b5 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2, \u03b1\u03bb\u03bb\u03ac \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03b1\u03b4\u03c1\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2, \u03b5\u03bd\u03ce \u03c3\u03c4\u03b7\u03bd \u03b1\u03c1\u03b9\u03c3\u03c4\u03b5\u03c1\u03ae \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b9\u03be\u03ce\u03b4\u03b5\u03b9\u03c2 \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03b9\u03c2. \u0397 \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03b5\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b7\u03c2 <strong>\u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03c2 \u03bd\u03cc\u03bc\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03c1\u03b5\u03c5\u03c3\u03c4\u03ac<\/strong>. \u0397 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03ad\u03c7\u03b5\u03b9 \u03b1\u03c0\u03bb\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af (\u03b8\u03b1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03bc\u03c6\u03b1\u03bd\u03b9\u03c3\u03c4\u03b5\u03af \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03ad\u03bd\u03b1\u03c2 \u03cc\u03c1\u03bf\u03c2 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03ba\u03bb\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2) \u03c5\u03c0\u03bf\u03b8\u03ad\u03c4\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c4\u03b9<a href=\"https:\/\/en.wikipedia.org\/wiki\/Incompressible_flow\" rel=\"nofollow noopener\" target=\"_blank\"><strong> \u03b1\u03c3\u03c5\u03bc\u03c0\u03af\u03b5\u03c3\u03c4\u03bf<\/strong><\/a> \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc. \u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03b7 \u03c0\u03c1\u03ce\u03c4\u03b7 \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03b4\u03b7\u03bb\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b7 \u03b1\u03c3\u03c5\u03bc\u03c0\u03af\u03b5\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03b3\u03c1\u03ac\u03c6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03b5\u03be\u03af\u03c3\u03c9\u03c3\u03b7 \u03b9\u03c3\u03bf\u03b6\u03c5\u03b3\u03af\u03bf\u03c5 \u03bc\u03ac\u03b6\u03b1\u03c2. \u0397 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03c5\u03bc\u03b2\u03bf\u03bb\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 rho, \u03c4\u03bf v \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1, \u03c4\u03bf p \u03c4\u03b7\u03bd \u03c0\u03af\u03b5\u03c3\u03b7, \u03b5\u03bd\u03ce \u03c4\u03bf mu \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd.<\/p>\n<p><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_momentum-1.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5093 size-full\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_momentum-1.jpg\" alt=\"\u0394\u03cd\u03bd\u03b1\u03bc\u03b7 \u03ad\u03bb\u03be\u03b7\u03c2 \" width=\"887\" height=\"352\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_momentum-1-300x119.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_momentum-1.jpg?size=600x238&amp;lossy=2&amp;strip=1&amp;webp=1 600w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_momentum-1-705x280.jpg?lossy=2&amp;strip=1&amp;webp=1 705w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_momentum-1-768x305.jpg?lossy=2&amp;strip=1&amp;webp=1 768w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_momentum-1.jpg?lossy=2&amp;strip=1&amp;webp=1 887w\" sizes=\"(max-width: 887px) 100vw, 887px\" \/><\/a><\/p>\n<h3>\u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2: \u03b9\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03af\u03b1 \u03bf\u03c1\u03bc\u03ae\u03c2.<\/h3>\n<p>\u039c\u03b9\u03b1 \u03b1\u03c0\u03bb\u03ae \u03ac\u03c0\u03bf\u03c8\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03c4\u03b1\u03bb\u03bb\u03ac\u03c3\u03c3\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u03c3\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03c5\u03b3\u03c1\u03bf\u03cd \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b1\u03c6\u03ae\u03c2 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1. \u0397 \u03bf\u03c1\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c1\u03b5\u03c5\u03c3\u03c4\u03bf\u03cd (\u03ad\u03bd\u03b1 \u03b4\u03b9\u03b1\u03bd\u03c5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2) \u03ad\u03c7\u03b5\u03b9 \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03b9 \u03b1\u03bd \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03bf\u03c1\u03bc\u03ae \u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03bf\u03c1\u03bc\u03ae \u03b5\u03be\u03cc\u03b4\u03bf\u03c5. \u0397 <strong>\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae \u03c4\u03b7\u03c2 \u03bf\u03c1\u03bc\u03ae\u03c2 \u03b9\u03c3\u03bf\u03cd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c3\u03ba\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc<\/strong>. \u0393\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03bd\u03b1\u03b3\u03bd\u03ce\u03c3\u03c4\u03b5\u03c2 \u03bc\u03b1\u03c2, \u03b4\u03af\u03bd\u03bf\u03c5\u03bc\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bc\u03b9\u03b1<strong> \u03b5\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03b5\u03be\u03ae\u03b3\u03b7\u03c3\u03b7<\/strong> of drag. Our object, moving within the fluid perturbs the field. We investigate the energy in the plane on the motion -x: its value is not zero since the vorticity of the fluid introduces a certain amount of energy in the fluid field.\u00a0 The energy introduced in the system equals the work done by external forces, in this case the object is moving mainly in x direction so the great part of the work is determined by the drag multiplied the distance travelled x. So we have the important hint that the<strong> \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b5\u03bd\u03ac \u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03b9\u03c3\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf<\/strong>. \u038c\u03c3\u03bf \u03c0\u03b9\u03bf \u03c3\u03c5\u03bc\u03c0\u03c5\u03ba\u03bd\u03c9\u03bc\u03ad\u03bd\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf <strong>\u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2<\/strong>, \u03c4\u03cc\u03c3\u03bf \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 <strong>\u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7<\/strong> \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5.<\/p>\n<h3><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_vorticity.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5094 size-full\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Drag_vorticity.jpg\" alt=\"\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2\" width=\"611\" height=\"420\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_vorticity-300x206.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Drag_vorticity.jpg?lossy=2&amp;strip=1&amp;webp=1 611w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/><\/a>\u039f\u03b9 \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03c3\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2.<\/h3>\n<p>\u039f\u03b9 \u03b4\u03cd\u03bf \u03b2\u03b1\u03c3\u03b9\u03ba\u03bf\u03af \u03cc\u03c1\u03bf\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03bf\u03c0\u03bf\u03af\u03bf\u03c5\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf drag \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03b5\u03be\u03ae\u03c2: <strong>\u03b9\u03be\u03ce\u03b4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 (Df)<\/strong> \u03ba\u03b1\u03b9 <strong>\u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2 (Dp)<\/strong>. \u039f \u03b9\u03be\u03ce\u03b4\u03b7\u03c2 \u03cc\u03c1\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03b1\u03c1\u03c7\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03b1\u03b5\u03c1\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ac \u03c3\u03c7\u03ae\u03bc\u03b1\u03c4\u03b1, \u03b5\u03bd\u03ce \u03bf\u03b9 \u03cc\u03c1\u03bf\u03b9 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2 \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf \u03b1\u03bd\u03c4\u03af\u03ba\u03c4\u03c5\u03c0\u03bf \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03b1\u03b2\u03b1\u03b8\u03ae \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1. \u0395\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c3\u03b7\u03bc\u03b1\u03bd\u03b8\u03b5\u03af \u03cc\u03c4\u03b9 \u03ad\u03bd\u03b1 <strong>\u03c4\u03bf \u03b2\u03b5\u03bb\u03c4\u03b9\u03c9\u03bc\u03ad\u03bd\u03bf \u03c3\u03ce\u03bc\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03b5\u03c1\u03b8\u03b5\u03af \u03c9\u03c2 \u03c3\u03ce\u03bc\u03b1 \u03bc\u03c0\u03bb\u03cc\u03c6\u03b1\u03c2<\/strong> \u03c3\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ae \u03b3\u03c9\u03bd\u03af\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b2\u03bf\u03bb\u03ae\u03c2 (\u03cc\u03c4\u03b1\u03bd \u03c4\u03bf \u03bf\u03c1\u03b9\u03b1\u03ba\u03cc \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u03b1\u03c0\u03bf\u03ba\u03bf\u03bb\u03bb\u03ac\u03c4\u03b1\u03b9).<\/p>\n<h3><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Component_drag.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5095\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Component_drag.jpg\" alt=\"\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03b4\u03ad\u03c1\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c0\u03af\u03b5\u03c3\u03b7\u03c2\" width=\"353\" height=\"199\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Component_drag-300x169.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Component_drag.jpg?lossy=2&amp;strip=1&amp;webp=1 578w\" sizes=\"(max-width: 353px) 100vw, 353px\" \/><\/a>\u0397 \u03c0\u03c1\u03bf\u03ad\u03bb\u03b5\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 (downforce).<\/h3>\n<p>\u039c\u03b9\u03bb\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03b1\u03bd\u03b5\u03bb\u03ba\u03c5\u03c3\u03c4\u03ae\u03c1\u03b1, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03bc\u03b9\u03bb\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd<strong> \u03c0\u03c1\u03bf\u03ad\u03bb\u03b5\u03c5\u03c3\u03b7<\/strong>. \u0395\u03b9\u03b4\u03b9\u03ba\u03cc\u03c4\u03b5\u03c1\u03b1, \u03b5\u03b4\u03ce \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9, \u03b7 <strong>\u03b5\u03c1\u03bc\u03b7\u03bd\u03b5\u03af\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/strong> \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9. \u0397 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7. \u038c\u03c0\u03c9\u03c2 \u03c0\u03c1\u03bf\u03ba\u03cd\u03c0\u03c4\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf <strong>\u0398\u03b5\u03ce\u03c1\u03b7\u03bc\u03b1 Kutta-Joukowsky<\/strong>, \u03c7\u03c9\u03c1\u03af\u03c2 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03b9\u03c3\u03bc\u03cc \u03b4\u03b5\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7. <strong>\u0397 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03bc\u03b7\u03c4\u03b9\u03ba\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae \u03c3\u03c4\u03bf \u03c4\u03bf\u03af\u03c7\u03c9\u03bc\u03b1<\/strong>. \u038c\u03c4\u03b1\u03bd \u03ad\u03bd\u03b1 \u03c3\u03ce\u03bc\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c1\u03bf\u03ae, \u03b7 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03c0\u03b1\u03c1\u03bf\u03c1\u03bc\u03b7\u03c4\u03b9\u03ba\u03ac \u03c3\u03c4\u03bf \u03c4\u03bf\u03af\u03c7\u03c9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03b5\u03bb\u03b5\u03c5\u03b8\u03b5\u03c1\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03bf\u03c5\u03c1\u03ac. \u03a0\u03b5\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c4\u03b5! \u039b\u03ad\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b7 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03b9\u03ba\u03cc (\u03c3\u03b1\u03c2 \u03c4\u03bf \u03b5\u03af\u03c0\u03b1\u03bd \u03c3\u03c4\u03b7 \u03c3\u03c7\u03bf\u03bb\u03ae), \u03c3\u03c9\u03c3\u03c4\u03ac!!! \u0395\u03af\u03bd\u03b1\u03b9 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03cc, \u03b1\u03bb\u03bb\u03ac \u03c3\u03b5 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf \u03c4\u03bf \u03c0\u03b5\u03b4\u03af\u03bf. \u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03bf \u03c3\u03ce\u03bc\u03b1 (\u03b1\u03b5\u03c1\u03bf\u03c4\u03bf\u03bc\u03ae) \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03c4\u03af\u03b8\u03b5\u03c4\u03b7 \u03b4\u03af\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b1\u03b9\u03c4\u03af\u03b1 \u03c4\u03b7\u03c2 \u03ac\u03bd\u03c9\u03c3\u03b7\u03c2. \u039f \u03cc\u03c1\u03bf\u03c2 tau \u03c3\u03c4\u03b7 \u03b3\u03bd\u03c9\u03c3\u03c4\u03ae \u03ad\u03ba\u03c6\u03c1\u03b1\u03c3\u03b7 Kutta (2D \u03c3\u03ce\u03bc\u03b1\u03c4\u03b1) \u03c4\u03b1\u03c5\u03c4\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1.<\/p>\n<p><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5097 size-full\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift.jpg\" alt=\"\u0391\u03b5\u03c1\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2\" width=\"609\" height=\"787\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift-232x300.jpg?lossy=2&amp;strip=1&amp;webp=1 232w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift.jpg?size=300x388&amp;lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift-546x705.jpg?lossy=2&amp;strip=1&amp;webp=1 546w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Aeordynamic_Lift.jpg?lossy=2&amp;strip=1&amp;webp=1 609w\" sizes=\"(max-width: 609px) 100vw, 609px\" \/><\/a><\/p>\n<h5>\u0397 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03ba\u03bb\u03b5\u03b9\u03b4\u03af \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b1\u03bd\u03c5\u03c8\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2.<\/h5>\n<p>\u0388\u03c4\u03c3\u03b9, \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1 \u03bc\u03ac\u03b8\u03b1\u03bc\u03b5 \u03c4\u03b7 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ae \u03c4\u03c9\u03bd \u03b4\u03c5\u03bd\u03ac\u03bc\u03b5\u03c9\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2. Ehi, \u03b1\u03bd\u03b1\u03c1\u03c9\u03c4\u03b9\u03ad\u03c3\u03c4\u03b5 \u03b1\u03ba\u03cc\u03bc\u03b1 \u03b3\u03b9\u03b1\u03c4\u03af \u03b7 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03ae \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03b5\u03c1\u03bf\u03c4\u03bf\u03bc\u03ae (\u03b5\u03bd\u03c4\u03cc\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b1\u03ba\u03bf\u03cd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2); \u03a3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af\u03c4\u03b5 \u03bb\u03af\u03b3\u03bf \u03c4\u03b7\u03bd <strong>\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2<\/strong> \u03c4\u03b7\u03c2 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2:<\/p>\n<p><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Vorticity.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5096 size-full\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Vorticity.jpg\" alt=\"\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae \u03b1\u03bd\u03c5\u03c8\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2\" width=\"391\" height=\"255\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Vorticity-300x196.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Vorticity.jpg?lossy=2&amp;strip=1&amp;webp=1 391w\" sizes=\"(max-width: 391px) 100vw, 391px\" \/><\/a>\u0397 \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c4\u03bf\u03af\u03c7\u03c9\u03bc\u03b1 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03bc\u03b7 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2. \u0398\u03c5\u03bc\u03b7\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03bc\u03b9\u03b1 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03b7\u03c2 \u03ba\u03ac\u03c4\u03c9 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03ac\u03bd\u03c9 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac\u03c2 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03b7 \u03bc\u03b7\u03b4\u03b5\u03bd\u03b9\u03ba\u03ae \u03c3\u03c4\u03c1\u03bf\u03b2\u03b9\u03bb\u03cc\u03c4\u03b7\u03c4\u03b1! \u03a3\u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1, \u03b8\u03b1 \u03b5\u03b9\u03c3\u03b1\u03b3\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u03c4\u03b7\u03c2 <strong>laminar<\/strong> \u03ba\u03b1\u03b9 <strong>\u03c4\u03c5\u03c1\u03b2\u03ce\u03b4\u03b7\u03c2<\/strong> \u03c1\u03bf\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03ae \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b1\u03b5\u03c1\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ad\u03c2.<\/p>\n<p><a href=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Lesson_2.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-5099\" src=\"https:\/\/www.presticebdt.com\/wp-content\/uploads\/2019\/12\/Lesson_2.jpg\" alt=\"\u039f\u03c0\u03b9\u03c3\u03b8\u03ad\u03bb\u03ba\u03bf\u03c5\u03c3\u03b1 \u03ba\u03b1\u03b9 Downforce \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b1\u03b3\u03ce\u03bd\u03b5\u03c2\" width=\"369\" height=\"224\" title=\"\" srcset=\"https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Lesson_2-300x183.jpg?lossy=2&amp;strip=1&amp;webp=1 300w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Lesson_2-705x429.jpg?lossy=2&amp;strip=1&amp;webp=1 705w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Lesson_2-768x467.jpg?lossy=2&amp;strip=1&amp;webp=1 768w, https:\/\/b3469057.smushcdn.com\/3469057\/wp-content\/uploads\/2019\/12\/Lesson_2.jpg?lossy=2&amp;strip=1&amp;webp=1 828w\" sizes=\"(max-width: 369px) 100vw, 369px\" \/><\/a><\/p>\n<\/div><\/section>","protected":false},"excerpt":{"rendered":"<p>\u0397 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03c5\u03c3\u03b9\u03ce\u03b4\u03b7\u03c2 \u03c3\u03c4\u03bf\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03bf \u03b1\u03b8\u03bb\u03b7\u03c4\u03b9\u03c3\u03bc\u03cc. \u03a0\u03ce\u03c2 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03cd\u03c8\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2; \u039f\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b5\u03be\u03ae\u03b3\u03b7\u03c3\u03b7.<\/p>","protected":false},"author":1,"featured_media":5099,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[46,45,36],"_links":{"self":[{"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/posts\/5083"}],"collection":[{"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/comments?post=5083"}],"version-history":[{"count":0,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/posts\/5083\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/media\/5099"}],"wp:attachment":[{"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/media?parent=5083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/categories?post=5083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.presticebdt.com\/el\/wp-json\/wp\/v2\/tags?post=5083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}