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How to accelerate post processing with CFD-Post? |
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April 14, 2020, 10:38 |
How to accelerate post processing with CFD-Post?
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#1 |
New Member
Aleksei
Join Date: Jun 2018
Posts: 24
Rep Power: 8 |
Hi all
CFD-Post works verly slowly with postprocessing transient results files. It can take up to several hours for postprocessing transient run on 500.000 elements of about 40 timesteps with chart creation or volume rendering. For example, META can do it in less than an hour. I suppose it is because CFD Post loads file step by step at each timestep of postprocessing. Is there any way to accelerate it? |
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April 14, 2020, 18:21 |
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#2 |
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Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,830
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I have never found CFD-Post to be a slow post processor. I find it quite fast. The mesh you talk about is not large, so it is puzzling that it is so slow. Chart creation and volume rendering are normally quick operations.
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April 15, 2020, 04:23 |
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#3 | |
New Member
Aleksei
Join Date: Jun 2018
Posts: 24
Rep Power: 8 |
Quote:
My mesh is 11 mln elements. I use volume rendering resolution of 250 planes with 0.2 transparency. I actually wanted to visualize smoke propagation in some big volume. I tried to run this postprocessing on 30 GB RAM machine and CFDPost almost dies. On a more powerful computer it took me 8 hours to create animation video of this volume rendering. I am still wondering if it is the normal processing speed for CFD Post. |
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April 15, 2020, 07:25 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,830
Rep Power: 144 |
I don't use the volume render option much but I vaguely recall that is can be slow. So try a different method of showing it - either an isosurface or a cross section plane.
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Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
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