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how calculate jacobian matrix?

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  • 1 Post By Andrei Chernousov

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Old   July 19, 1999, 03:20
Default how calculate jacobian matrix?
Lee, Juhee
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hi here. i am a beginner on CVM(control volume method). i'd like to know jacobian maxtrix. the Euler equaiton is

dQ/dt + dE/dx + dF/dy = 0.

how can i calculate jacobian matrix?


thank you.
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Old   July 19, 1999, 11:30
Default Re: how calculate jacobian matrix?
Andrei Chernousov
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Hello Lee Juhee!

First of all, derivation of analytical expressions for derivatives of dF/dQ type is straightforward and can be easily explained and performed, but it is rather tedious work.

If you are interested only in the final result, I can send you programs written in C language for testing not only Jacobians but also their (very useful) diagonalizing transformations ([A]=dF/dQ=[1/S]{L}[S], etc. ) for Jacobians for euler (inviscid) terms in 1D, 2D and 3d.

These codes contains all the formulae you need.

Best regards, Andrei
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Old   May 23, 2011, 17:03
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Hiii , I will be thankfull to you if u can send those files of jacobians to me
my mail id :
Hoping for a positive response thanx in advance
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Old   May 25, 2011, 04:19
Ramesh K
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You can find the Jacobian Matrices for both viscous and invicid fluxes in the appendix of T.J.Chung and Blazek Textbooks.
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