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April 2, 2018, 07:21 |
Problem in Initlizing domain Fineopen
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#1 |
New Member
Vishwas Verma
Join Date: Mar 2016
Location: Mumbai India
Posts: 25
Rep Power: 10 |
Dear all,
Currently i am facing issue in post processing in CFView. The computational domain consist of a fan(meshed in AG5), a duct(meshed in hexpress) and an axial compressor(meshed in AG5). The mesh is joined in hexpress, and run in fine open62. The problem is CFView turbomachinery mode not getting active. When I traced the problem, matching each step with fineopen advanced tutorial 2, I found that during initializing the domain, I had used constant initial solution, since tutromachinery mode is somehow disable, whereas in tutorial it it works fine. I am guessing because of this I am not able to post-process the results in CFView in turbo-machinery mode. My solution is converged in properly fineopen. I don't understand, where am i making mistake other than this? Is there some specific way to save file, such that fineopen will recognise the domain as turbomachinery domain, or something extra has to be activated? Hope i have explained the problem completely. Thanks Kind Regards Vishwas |
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April 3, 2018, 03:34 |
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#2 |
Senior Member
Holger Dietrich
Join Date: Apr 2011
Location: Germany
Posts: 174
Rep Power: 14 |
Dear Vishwas,
when you try to open the turbomachinery mode does the following message appear: "The turbomachinery module could not be initialized, because the hub and shroud curves are not loaded. Do you want to open the pitch average view?"? As stated, the hub and shroud curves are missing. You can easily extract the hub/shroud curves from a structured mesh in CFView: Geometry -> Load Hub and Shroud Curves. Please select the mesh .cgns file. In the directory of this mesh folder a *hub_shroud.dat file is written, it contains the ZR coordinates of the hub and shroud. The following should work: Generate the hub_shroud.dat files for each of the structured meshed domains. Considering the unstructured part you need to obtain the values manually, maybe on basis of your CAD geometry. Finally you should merge all three hub/shroud curve parts in one file. When starting the turbomachinery mode again please select "Load Hub and Shroud" at first and select the merged file, which contains all three hub/shroud parts. Kind regards Holger |
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April 3, 2018, 04:29 |
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#3 |
New Member
Vishwas Verma
Join Date: Mar 2016
Location: Mumbai India
Posts: 25
Rep Power: 10 |
Dear Holger,
Many thanks!! It was worked. Yes, the issue was in loading hub and shroud curves. Kind Regards Vishwas |
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