2 Replies Latest reply on Jan 8, 2013 8:59 AM by Chris Michalski

Analysis arows pass through model

Caslor Zach Jan 7, 2013 5:30 PM

Fisrt off all i want to tell that i am not an experience user..
The software dont belong to me... but in the company i work

The problem :.

I download a free car model in solidworks format .sldprt

i saw some tutorials about cfd analysis and try to make cfd analysis from simple objects i created in 3DS (imported as a wrl )

Now when i open the sldrtp file of the car model the scan says that has nothing bad surfaces

i open the cfd wizard and make the adjustments

But after cfd Analysis... when i open to see the results.. all the lines of forces pass through the model.. not over it..

why?

i will post later some pictures of the problem..

Re: Analysis arows pass through model

Caslor Zach Jan 8, 2013 8:26 AM (in response to Caslor Zach)

Here is the first cfd atempt with models made in 3ds

and here is with the model in sldprt i download
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- Re: Analysis arows pass through model
  
  Chris Michalski Jan 8, 2013 8:59 AM (in response to Caslor Zach)
  
  have you looked at the mesh of the models? in the results, go to mesh and select all solid cells. This will show you what the software has approximated your geometry as. I would assume it has over simplified the top model.
  
  As for the car - is it a solid or surfaces? Flow only solves for fluids to move around solids, surfaces are ignored as they have no finite thickness. This could be why the flow passes through the model. Again, check the mesh.
  
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