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February 4, 2011, 07:52 |
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#21 | |
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Maxime Perelli
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Then you gave a element size, let say 1 for example. You can refine your mesh by changing the value of element size (0.5 instead of 1). Then remesh, export, etc... I see you have local refinement in your mesh. If you used size functions, then you need to change the max size in each size function, instead of the value in the surface-mesh panel
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February 4, 2011, 08:22 |
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#22 | |
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John
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Please check the pictures of my coarse tri results. and the mesh too. what do you think? |
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February 4, 2011, 08:47 |
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#23 |
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Maxime Perelli
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oh you are working with workbench...
So forget what I said previously (I thought you were working with Gambit) I cannot help you on the meshing side since I only have Gambit. But if you are interested by aero Coeff, I would apply Boundary Layer around your car (especially if your flow is turbulent >>Check lectures about first cell layer height & y+) Also I wouldn't iterate with just 100 iterations: you can see that your Cl is still falling
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February 4, 2011, 11:10 |
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#24 | |
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John
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- The following surfaces cannot be meshed with acceptable quality. Try using a different element size or virtual topology. - A mesh could not be generated using the current meshing options and settings. Hint: The problem geometry areas might have been highlighted. Switching to wireframe mode may make them more visible. What can I do to fix this issue? |
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February 7, 2011, 02:14 |
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#25 |
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Maxime Perelli
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As I said, I don't have experience with Workbench
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February 20, 2012, 12:39 |
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#26 | |
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I have a problem with Ansys Fluent too. I am wondering is there any recomended link to test aerodynamic on automotive such as truck or car. My drag and lift coefficient is not the same as I found in those journals. Is there any improtant things i should beware when doing simulation on a scaled model? Some journal stated that the Reynolds number of model and real scale must be the same, is that so? |
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February 21, 2012, 06:50 |
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#27 |
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Maxime Perelli
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for coefficients, you have to set reference parameters
http://my.fit.edu/itresources/manual...ug/node972.htm
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February 23, 2012, 02:24 |
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#28 |
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thx for the reply. will figure it out.
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March 16, 2012, 12:15 |
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#29 | |
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sheth roh
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October 8, 2015, 12:39 |
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#30 | |
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March 21, 2017, 20:53 |
fluent 3d
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#31 |
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Barata Laode
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Dear all,
I am a new comer in fluent analysis, Does anyone can provide possible explanation why I get zero Cl value in my result, I run fluent 3d rectangular cantilevered into water tunnel thansk alot regards Barata |
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Posted By | For | Type | Date | |
Drag coefficient simulation in ANSYS 12.0 Fluent - Forum - F1technical.net | This thread | Refback | November 21, 2013 12:39 |
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