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#1 |
Member
naji
Join Date: Nov 2022
Posts: 37
Rep Power: 3 ![]() |
Hi guys
I'm doing a time independence study i have 4 time steps and i did the simulation and defined a report definition for the parameter but after ending the simulation i realized that reports weren't saved,is there any other way to compare the results except plotting based on time for time study? i have no data to compare(except case and data of every simulation) and solution time is a lot ![]() if anyone has an idea i would appreciate |
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#2 |
New Member
Nilotpal Dhar
Join Date: Nov 2022
Location: United Kingdom
Posts: 4
Rep Power: 3 ![]() |
How are you defining the parameter? In the controlDict as functions?
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#3 | |
Senior Member
Kareem
Join Date: Nov 2022
Location: New York
Posts: 123
Rep Power: 3 ![]() |
Quote:
For example, assuming you are looking at an airfoil and your chosen parameter is the drag coefficient. You can determine the ending coefficient from each simulation and compare them against each other. By comparison I mean looking at the relative percent change between each mesh. Once the change is below 1%-5% (depending on you simulation, tolerance, etc.) you should be independent. If, however, the simulation is transient (moving wall, changing boundary condition, etc.) your critical parameter will likely not be a single number, but a transient plot or profile. In this case there's unfortunately no way to recover the transient data if you did not export it. If you can provide more detail on your problem I can help you determine an adequate parameter to investigate.
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Tags |
time study, transient |
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