CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   How to use Jacobian in BEAM-WARMING METHOD (http://www.cfd-online.com/Forums/main/1049-how-use-jacobian-beam-warming-method.html)

Yogesh Talekar July 20, 1999 05:50

How to use Jacobian in BEAM-WARMING METHOD
 
Can anybody help me with this. I am solving 1-D equations of the form dU/dt + dF/dx = 0 using Beam-Warming method. After finding jacoboan which is 3X3 i get them in the form dU/dt + B * dU/dx = 0 form I have denoted the elements of matrix as

B11, B12, B13,

B21, B22, B23

B31, B32, B33

After using Finite difference the equation becomes tri-diagonal and can be solved using THOMSAS algorithm

But there are calculations like B1[i] * U1[i] So should i calculate such term like

(B11[i]*B12[i]* B13[i]) * U1[i]

Or some thing else is needed to be done here? Can Anybody help?


All times are GMT -4. The time now is 19:53.