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August 31, 2018, 09:23 |
Integration in time with OpenFOAM utilities
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#1 |
New Member
Iago Lessa de Oliveira
Join Date: May 2015
Posts: 23
Rep Power: 11 |
Hello everyone,
I am solving flows in human arteries where the flow is non-stationary and I solved it using the pisoFoam solver. To calculate one variable related to the hemodynamics, the so-called oscillatory shear index (osi), I need to calculate the integral in time of the wall shear stress values in each cell of the wall domain (i.e. after it I will have only one field of osi). I am able to do it using other tools for post processing, however I would like to do it specifically using OpenFOAM classes, if already exists utilities for that. So I would like to know if there is any form of performing time integration of OpenFOAM results without having to start directly with C++ to implement it. Thanks in advance! Regards, iago |
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September 6, 2018, 10:19 |
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#2 |
New Member
Join Date: May 2018
Posts: 14
Rep Power: 7 |
I have never use that but it seem to be with the "TemporalStatistics" tool
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September 10, 2018, 05:00 |
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#3 |
New Member
Sagar
Join Date: Sep 2017
Location: Surat, India
Posts: 10
Rep Power: 8 |
Hi Iago Lessa,
You can try this. First calculate wallShearStress using OpenFOAM PostPrecess utility. Then Open the case in ParaView and Use Filter "Temporal Statistics". It will give you options for calculating min, max, average and standard deviation. If your delta t is fixed or constant then you can use averaging in time. May it will help you. |
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September 11, 2018, 20:04 |
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#4 | |
New Member
Iago Lessa de Oliveira
Join Date: May 2015
Posts: 23
Rep Power: 11 |
Quote:
Thanks very much for the answer, I haven't realized that ParaView had these filters. Temporal Statistics did the trick! Best Regards, Iago |
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May 23, 2019, 14:20 |
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#5 | |
Senior Member
alberto
Join Date: Apr 2016
Location: Mexico
Posts: 117
Rep Power: 10 |
Quote:
I can see that you find the way to calculate the OSI and show in Paraview, Could you help me? I've tried but with out success. I will really apreciate if you help me. |
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