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Old   October 12, 2002, 23:24
Default about Roe matrix !
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Root Willow
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hello all,

I'm now studying the Roe scheme. But I didn't find how to express the flux's jacobi matrix in terms of (density,velocity,enthalpy ).Who may tell me how to get the expression of the matrix? thanks.
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Old   October 14, 2002, 09:23
Default Re: about Roe matrix !
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gita
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Hi,

Equation:U_t + F_x=0 ----(*) where U=transpose of[rho rhou rhoE] and F=transpose of[rhou rhou**2+p rhouH]

* is rewritten as U_t + A U_x=0 where A is the Jacobian matrix A= dF/dU. Differentiate the flux matrix components wrt the components of U.

gita

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Old   October 15, 2002, 04:26
Default Re: about Roe matrix !
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Root Willow
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hi gita, Thank you for your answer.
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