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February 20, 2011, 07:38 |
Drag coefficient not even close
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#1 |
New Member
Join Date: Feb 2011
Location: Norway
Posts: 2
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I am a mechanical engineering student on mye 2nd year and therefore have no prerequisites on doing CFD (taking first fluid course now). However I participate in Formula student, and we hope to use CCM+ a lot.
I started doing the tutorial on this site: http://www.computationalfluids.com/library.htm (flow around circular cylinder) The problem is I can not get the right value for the drag coefficient. As seen in the picture below, the value -0,0866... is way to low, as it should have been 0,4 and separation at 120degrees. Is this the right way to measure the drag coefficient? The mesh is 13566 cells (the largest one in the tutorial) Re: 15,7x10^6 water at 10m/s cylinder D=1,4m |
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Tags |
drag coefficient, newbie, tutorial |
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