Cd for a car(2D model),help me! -- CFD Online Discussion Forums

August 5, 2009, 18:33	Cd for a car(2D model),help me!	#1
reza79 New Member reza Join Date: Aug 2009 Posts: 2 Rep Power: 0	Hi every body. I'm working on a project deals with calculating drag coefficient of a car(a 2d model from cross section), i dont know that where is my mistake that my answer is about 10-20 times smaller than absolute value and is about .015! first:for calculating CD,should i select all of the car body az an unique body? second:what should be my boundry condition? please help me,i'm so confused! thanks

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