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-   -   Jacobian Matrix of Van Leer Flux Splitting Vector (http://www.cfd-online.com/Forums/main/2945-jacobian-matrix-van-leer-flux-splitting-vector.html)

Jackson December 27, 2000 03:54

Jacobian Matrix of Van Leer Flux Splitting Vector
 
Could any one provide references on Jacobian Matrix of Van Leer Flux Splitting Vector for me or tell me how to compute it? Thanks in advance. Merry Christmas and Happy New Year!

Mohammad Kermani December 27, 2000 21:34

Re: Jacobian Matrix of Van Leer Flux Splitting Vec
 
The two volume text -book by Hoffmann and Chiang (1993)is completely explaining Steger-Warming FVS scheme, which is about 95% similar to van Leer's.

U can calculate all the fluxes and Jacobians say by using Maple or Mathematica.

If U have Maple sofware, I can send U my maple file which computes the jacobian, eigen values, fluxe vectors etc.


Fazila July 29, 2010 11:57

I am very new in the field of numerical methods. Currently, I am studying the impact of CFL number on the numerical convergence and computational run time and I found that implicit method has difficulties to solve the Jacobian matrix, causing the required CPU time higher for convergence. One way of solving that problem is by using Jacobian-free method.

But first, i am asking for one's good office to suggest me how could I start the studies from the Jacobian matrix calculation to have a better understanding on that.

Thanks in advance


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