Really good content. Thank you for sharing. I get that computational cost is reduced when using AMR, but what is the results and time difference from using AMR with something like the kEpsilon or KOmegaSST model versus doing a full LES simulation. I know RANS is much better computationally, but what about quantitative values?
Thanks for the comment, it is kind of a complicated topic that you bring up. I am by no means an expert in LES, but as far as I am familiar the decisive parameter for the mesh resolution is the turbulent kinetic energy compared to RANS where the mesh is resolving gradients. Because of this the answer is highly dependent on your specific case, and I can't really give quantitative values without running a case (which is definitely somewhere in the pipeline).
When I run the code, I get the error below, How can I fix it? --> FOAM FATAL IO ERROR: Essential value for keyword 'field' not set In function entry: scalarTransport In file: /Desktop/OpenFoam/OpenFOAM-Cases-Interfluo-main/Canonical-Flows/jet/case1/system/controlDict at line 56 The function entry should be: scalarTransport(field = )
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Timeline:
0:00 - Introduction
1:23 - Cases and Set-up
2:09 - blockMesh
3:55 - Boundaries
4:29 - Results
5:00 - A bit on AMR
5:18 - Scalar transport animations
6:20 - Velocity Profiles
7:50 - Closing Remarks
Really good content. Thank you for sharing. I get that computational cost is reduced when using AMR, but what is the results and time difference from using AMR with something like the kEpsilon or KOmegaSST model versus doing a full LES simulation. I know RANS is much better computationally, but what about quantitative values?
Thanks for the comment, it is kind of a complicated topic that you bring up. I am by no means an expert in LES, but as far as I am familiar the decisive parameter for the mesh resolution is the turbulent kinetic energy compared to RANS where the mesh is resolving gradients. Because of this the answer is highly dependent on your specific case, and I can't really give quantitative values without running a case (which is definitely somewhere in the pipeline).
Hi, could you kindly explain how to make the contour? it is very professional...
When I run the code, I get the error below, How can I fix it?
--> FOAM FATAL IO ERROR:
Essential value for keyword 'field' not set
In function entry:
scalarTransport
In file:
/Desktop/OpenFoam/OpenFOAM-Cases-Interfluo-main/Canonical-Flows/jet/case1/system/controlDict at line 56
The function entry should be:
scalarTransport(field = )