Obtaining an absurd value for the lift coefficient -- CFD Online Discussion Forums

August 11, 2010, 02:31	Obtaining an absurd value for the lift coefficient	#1
deeps New Member Join Date: Nov 2009 Posts: 19 Rep Power: 16	Hello every1, I am trying to simulate a car model at some freestream velocity. Im using the realizable KE turb model for this. The problem comes when I'm calculating the lift coefficient. Although Im getting a correct value for Cd, Im getting an absurd value for Cl (arnd -77.56). If anyone has an experience on simulating flow over a car, kindly advise me on what changes should i make in order to get a correct Cl . Thanks a lot. Last edited by deeps; August 11, 2010 at 02:35. Reason: spelling mistake in the subject of the thread

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