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February 14, 2021, 13:44 |
Multiphase simulation taking too long
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#1 |
New Member
Allen
Join Date: Feb 2021
Posts: 3
Rep Power: 5 |
I am studying the effect of change in gravity on a tank that is filled up to 1/3rd of its volume with liquid N2. The tank has baffles and I am trying to study the sloshing effects. These are the settings I have enabled,
Mesh: Number of cells: 1,226,345 Polyhexacore mesh generated within Fluent watertight geometry The mesh is kept as coarse as possible for initial simulation Fluent Setup:
I am running the simulation parallelly on 30 processors of Intel Xeon 4216 CPU @ 2.10 Ghz & 1 GPU NVIDIA GeForce RTX 2080Ti. 64GB 2400MHz RAM and 42GB GPU Memory The simulation is taking a very long time (around 0.25 seconds of flow time has been simulated in 24 hours, 1%). Is there something I am doing wrong? Is there some way I can improve my timings. |
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March 3, 2021, 07:09 |
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#2 |
Member
Vignesh Lakshmanan
Join Date: Nov 2016
Posts: 79
Rep Power: 9 |
I guess the time step size is too small. Probably you can gradually increase time steps size as the simulation progresses.
Though I dont have much exposure in multiphase flows, I guess your settings are ok Hope it helps!!!! |
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Tags |
fluent - parallel, multiphase |
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