|October 25, 2013, 02:52||
WENO scheme ghost points
Join Date: Aug 2010
Posts: 5Rep Power: 8
I am writing finite difference WENO solver with LF flux splitting scheme. I have some doubts in that.
1) I am using stencil (i-2 to i+2) for calculation of flux at i+1/2(+) and i-1/2(-). And stencil (i-1 to i+3) for getting flux at i+1/2(-) and i-1/2(+). Is this correct?
2) In the flux splitting the eigen vectors for the flux jacobian are obtained at A(U)at i+1/2.. Here, in the eigen vectors, the metric derivatives are needed at i+1/2 and i-1/2. How to obtain metric derivatives at these points as i have metric derivatives at (i-1,i and i+1).
3) in 2d case i need three ghost points. based on boundary i use either reflective boundary or non reflective boundary condition for ghost points. How to handle metric derivatives for ghost points?? I am getting disturbances from the boundary points...
Kindly help me
|Thread||Thread Starter||Forum||Replies||Last Post|
|No layers in a small gap||bobburnquist||OpenFOAM Native Meshers: snappyHexMesh and Others||6||August 26, 2015 09:38|
|A way to optimize the WENO scheme by optimizing the coefficients of linear scheme||moon_light||Main CFD Forum||1||November 27, 2012 10:19|
|BlockMeshmergePatchPairs||hjasak||OpenFOAM Native Meshers: blockMesh||11||August 15, 2008 07:36|
|WENO SCHEME BASICS Help Required!!!||John||Main CFD Forum||1||January 18, 2007 04:16|
|Finite Volume WENO Scheme||DSS||Main CFD Forum||3||January 15, 2007 04:47|