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Chan K I October 19, 2000 05:56

Artificial Dissipation Techniques
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.

Apurva Shukla October 20, 2000 02:11

Re: Artificial Dissipation Techniques

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.



boling October 25, 2000 10:02

Re: Artificial Dissipation Techniques
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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