# coefficient of drag for 2D car model

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March 10, 2013, 04:36
coefficient of drag for 2D car model
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Atul Agrawal
Join Date: Mar 2013
Posts: 5
Rep Power: 6
I have to analyse a 2d car model of length(3.4m*10m) with a 0.75 radius in top and below of the front part of car(the Geometry is attached).

To calculate Cd what should I put in area in reference value section in ansys.
sketch 3.jpg

Thanks

PS:I am folowing this paper
http://jet.utem.edu.my/index2.php?op...d=80&Itemid=47

And it say :

A bus-shaped with 10 m in length and 3.4 m in
height is a simplified model proposed by Sanisa and Davidson (2003)
which takes the square shape at its rear end with the ground clearance
at 0.29 m.

ATul
Attached Images
 sketch2.jpg (47.5 KB, 23 views)

Last edited by atul2512; March 10, 2013 at 05:10. Reason: Link edited

 March 10, 2013, 05:59 #2 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,331 Blog Entries: 6 Rep Power: 45 Where did you make this model? DM ?

 March 10, 2013, 06:19 #3 New Member   Atul Agrawal Join Date: Mar 2013 Posts: 5 Rep Power: 6 From Ansys Geometry only...why?

 March 10, 2013, 10:36 #4 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,331 Blog Entries: 6 Rep Power: 45 Actually I am modelling 3d vehicle model in design modeller and I am successful in making it but I am unable to create the round surface at front. So wanted to know how to put the round edges in modelling mode.

 March 10, 2013, 15:39 #5 New Member   Atul Agrawal Join Date: Mar 2013 Posts: 5 Rep Power: 6 mine is 2d so was easy.There are lot of option in pro-e/catia for this. I think fillet may work.no idea.google it.lot of tutorial are there

 Tags coefficient of drag, fluent 13.0, reference areas

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