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Issue of FvDOM radiation model in 2D axisymmetric case |
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#1 |
New Member
Junjun Guo
Join Date: May 2019
Posts: 13
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Hi,
I am running a 2D axisymmetric case using wedge grid, there are two wedge boundaries and one axis boundary. I am using fvDOM radiation model to calculate the radaition heat loss from the high temperature gas. I got a very very high value of I (radiation intensity) and G (incident radaiton) in Axis (see the attachment). My guess is that fvDOM had a problem when it encountered the boundary condition of Axis. The ray should have passed through Axis, but it did not. Does anyone know how to solve this issue? I really appreciate. Regards, Junjun |
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#2 |
New Member
Cna
Join Date: Oct 2014
Posts: 5
Rep Power: 12 ![]() |
Hello,
I am not sure if this is still an issue for you, as it has been a long time since your question. However, I would like to point out that the fvDOM model was not capable of being used in axisymmetric geometries before its recent updates. Since then, you can use the specular boundary condition, which correctly handles wedge-type patches for rays in the DOM (see the link below). You can easily search the web to learn about its theory and how to compile/add this new boundary to your OpenFOAM setup. https://www.openfoam.com/news/main-n...ary-conditions |
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Tags |
axis, fvdom, radiation, wedge |
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