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January 22, 2018, 11:33 |
Diploma Thesis: Hints highly appreciated.
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#1 |
New Member
Georg
Join Date: Dec 2017
Posts: 15
Rep Power: 8 |
Hello Colleagues,
I will be the tutor of a diploma thesis, where we designed and manufactured a jetpump for special exhaust gas sampling. Please refer to the Attachement, where you can see a sketch of the actual jetpump, where we have also measurement data. The graduant uses the given CFD Tool Ansys, whereas I will use OpenFOAM in parallel. We both validate the models on the one hand with the limited measurement data and on the other hand by comparing the results of both platforms. I would like to start to mesh the jetpump according the sketch in blockMesh, where i can create the meshes depending on the parameter - angel phi of the annular gap - thickness d of the gap - and the applied pressure at the inlet of the gap The Task is to find the maximum flowrate through the orifice at a minimum used compressed air through the gap (see attachment) depending on all 3 parameters by a vast parameter study. Here, I would highly appreciate any hints from experienced user regarding - is the approach meshing a quader of the jetpump a good idea? - from the measurement data, we know that the gas velocity at the gap outlet will be in a range of 50m/s to sonic speed--> which solver do you recommend? - Are there any known pitfalls regarding BC? Of course, I am going to share alle the results (comparions to ANSYS and measurement data) here. Thanks in Advance George |
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