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Constant Speed Submarine 3D Dynamic Mesh - Fluent |
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#1 |
New Member
cmunikat
Join Date: Feb 2022
Posts: 1
Rep Power: 0 ![]() |
Hello,
* Lets say that I am trying to simulate a simplified submarine, 3D. * It travels at constant speed. * The submarine movement is controlled by UDF, no explicit propulsion is simulated. *ERROR MESSATE: NEGATIVE CELL VOLUME DETECTED * I COULD PROPERLY SIMULATE THIS ON FLUENT 2D, BUT TRIED EVERYTHING AND ALWAYS FAILS ON 3D SIMULATION. * I tried using smaller time step, layering, smoothing and remeshing combinations. Always the problem above. * COULD YOU PLEASE SUGGEST HOW TO SET UP THIS MODEL? THANKS |
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#2 |
Member
Marcin
Join Date: Jun 2016
Posts: 98
Rep Power: 10 ![]() |
Is this a rigid body?
If so, maybe try the overset mesh, instead of dynamic mesh, which is very error-prone. |
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Tags |
dynamic mesh, fluent 3d, negative cell volume |
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