coefficient of drag for 2D car model

atul2512 · March 10, 2013, 04:36

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

Far · March 10, 2013, 05:59

Where did you make this model? DM ?

atul2512 · March 10, 2013, 06:19

From Ansys Geometry only...why?

Far · March 10, 2013, 10:36

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.

atul2512 · March 10, 2013, 15:39

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

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March 10, 2013, 05:59		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Where did you make this model? DM ?

March 10, 2013, 06:19		#3
atul2512 New Member Atul Agrawal Join Date: Mar 2013 Posts: 5 Rep Power: 13	From Ansys Geometry only...why?

March 10, 2013, 10:36		#4
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	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
atul2512 New Member Atul Agrawal Join Date: Mar 2013 Posts: 5 Rep Power: 13	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