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#1 |
New Member
ren XG
Join Date: Sep 2012
Posts: 10
Rep Power: 13 ![]() |
Hello,
I want to implement a high-order difference sheme which is 4 or 5 order, but it seemed that the difference order is just up to 3 order, the difference template in OpenFOAM now is just two cells, but the high order(4or5) will need more than 3 neighbor cells, so who can tell me how to implement the high order difference with the smallest modify with the current C++ code? |
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#2 |
Senior Member
Matvey Kraposhin
Join Date: Mar 2009
Location: Moscow, Russian Federation
Posts: 355
Rep Power: 21 ![]() |
Hello, i tried to implement high-order schemes in OpenFOAM (WENO + k-exact) one year ago, but i found, that i don't know how to select proper stencil for scheme. If You will help with mathematics, then i can help you with implementation
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#3 |
New Member
ren XG
Join Date: Sep 2012
Posts: 10
Rep Power: 13 ![]() |
Thank you for your reply, and I don't quite get what do you mean " i don't know how to select proper stencil for scheme"? the scheme that we want to implement is WCNS scheme. So can you give me some advice or with a example code of high-order sheme? Thanks very much!
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#4 |
New Member
ren XG
Join Date: Sep 2012
Posts: 10
Rep Power: 13 ![]() |
what you said had been solved in a paper "High Order Schemes on Three-Dimensional General Polyhedral Meshes—Application to the Level Set Method", it maybe help you.
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#5 | |
Member
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Quote:
Can I ask you whether you have implemented this high order (WENO) method within OpenFOAM, or not yet? If yes, can you please kindly tell me is it available somewhere? Regards, Reza |
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#6 |
New Member
Mohit Kumar Singh
Join Date: Aug 2016
Location: Denver, CO
Posts: 2
Rep Power: 0 ![]() |
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#7 |
Member
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Hi there,
You can find some suitable information in the post below: https://www.cfd-online.com/Forums/op...-problems.html Regards, Reza |
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Tags |
difference sheme |
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