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Old   April 27, 2017, 16:00
Default Meshless method for shock capturing
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nabizadeh
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Hello,

I am trying to implement an RBF meshless method to capture shock waves. I used a Roe's scheme as an upwinding method but my result shows that it is to diffuse. Has anyone used RBF method to capture shock wave? I appreciate it if you could give any suggestion to improve the resolution and better accuracy.
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Old   May 7, 2017, 06:19
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E. Chaabelasri
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Hello,

I'm working too on the RBF method for problems including schock.

You can try to look this references :
http://www.sciencedirect.com/science...55799716300108

The mean idea is to combine a upwinding with slope limiter techniques.

I thinck also that good results herien are because largest collocation points.
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Old   May 8, 2017, 19:03
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Thanks for the reply. Actually I used the slope limiter (Van Albada) to find the value at the interface and enhance the accuracy but I think there are some problems with the upwinding implementation. Do you have any idea on how to implement the upwinding scheme for RBFs?


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Originally Posted by phy4me View Post
Hello,

I'm working too on the RBF method for problems including schock.

You can try to look this references :
http://www.sciencedirect.com/science...55799716300108

The mean idea is to combine a upwinding with slope limiter techniques.

I thinck also that good results herien are because largest collocation points.
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Old   May 15, 2017, 10:02
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E. Chaabelasri
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In the reference above the the implementation of upwind technique are described.
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