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-   -   Problem with an obstacle in format stl (http://www.cfd-online.com/Forums/flow-3d/126346-problem-obstacle-format-stl.html)

ounifiras November 14, 2013 17:19

Problem with an obstacle in format stl
 
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DEAR EXPERTS

I am trying to simulate a weir in a channel, I prepare the STL form and I put it in the channel, but I was surprised by the resultas as the pictures shows, the barrier was crossed by the flow as if it does not exist, although it is imported as a solid, standard

JBurnham November 14, 2013 18:33

The mesh is not fine enough to resolve that thin .stl. There needs to be at least 2 (preferably 3 - 4) cells across the cross-section of all solids.

ounifiras November 14, 2013 19:31

thanks for explaining
I drew the STL file with Autocad and I import directly as STL file format, the mesh that I can change is the Block, I do not know how to change the mesh STL?

THANKS

zandi November 16, 2013 03:52

plz clarify your question. what exactly do you want to do?


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