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Old   October 19, 2000, 05:56
Default Artificial Dissipation Techniques
Chan K I
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I'm currently performing inviscid compressible flow calculations on unstructured meshes.

When using combined 2nd/4th order smoothing, may I know what are some ways to implement this on wall boundaries without generating spurious entropy?

Would also appreciate references to literature on this subject.

Thanks very much.
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Old   October 20, 2000, 02:11
Default Re: Artificial Dissipation Techniques
Apurva Shukla
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In my knowledge, these artificial dissipation are not implemented at walls and other physical boundaries like inlet and outlet. I would suggest you to refer the 1981 paper by Jameson on this regard. I have forgot the jounal name.


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Old   October 25, 2000, 10:02
Default Re: Artificial Dissipation Techniques
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AIAA Paper 81-1259 is the original paper where JST scheme producted. I suggeste you see Swanson and Turkel's paper or NASA report which you can download it from NASA report service. In those papers Swanson analysised the 4-order artificial dissipation at the wall boundary according to the flux and conservation .
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