|
[Sponsors] |
October 25, 2013, 03:52 |
WENO scheme ghost points
|
#1 |
New Member
Srinivasan
Join Date: Aug 2010
Posts: 5
Rep Power: 16 |
Hi guys,
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 Regards vasu |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[snappyHexMesh] No layers in a small gap | bobburnquist | OpenFOAM Meshing & Mesh Conversion | 6 | August 26, 2015 10:38 |
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 |
[blockMesh] BlockMeshmergePatchPairs | hjasak | OpenFOAM Meshing & Mesh Conversion | 11 | August 15, 2008 08:36 |
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 |