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-   -   how to get the drag and lift coefficeint in fluent (http://www.cfd-online.com/Forums/fluent/46107-how-get-drag-lift-coefficeint-fluent.html)

vincent September 22, 2007 00:54

how to get the drag and lift coefficeint in fluent
 
hi, everybody! i am new user here. may somebody teach me how can i get the drag coefficient and lift coefficient for my 2d and 3d car air flow simulation? for example with a given dimension of length=4.465m, width=1.74m and height=1.42m. thank you.


red lemon September 22, 2007 10:50

Re: how to get the drag and lift coefficeint in fl
 
Solve>Monitor>Forces and correctly define reference values in panel

vincent September 24, 2007 05:16

Re: how to get the drag and lift coefficeint in fl
 
thanks red lemon, may i know how to set the reference value? my 2d car height is 1.43m, overall length is 4.488m,if i compute from velocity_inlet(one of my wind tunnel boundary), then what should i set for my area?is't the value is equal to my car height? and the length is equal to car length? how about the pressure?is't must same with the operating condition i set?


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