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unsteady 1-D euler equations in a nozzle

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Old   November 11, 2008, 19:38
Default unsteady 1-D euler equations in a nozzle
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Luca
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Hi,

I am a university student. I must solve an unsteady 1-D problem for a nozzle flow using euler equation with MATLAB. This is a PDE initial boundary value problem. I'm using a finite volume method QUICK and a fourth order RUNGE-KUTTA (the first one for the space derivatives, the second one for the time derivatives). The solution tends towards instability even if I use a very small time step and consequently a small CFL number. I would like to thanks all the people would give me information about this problem.
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Old   November 30, 2008, 15:13
Default Re: unsteady 1-D euler equations in a nozzle
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dileep mathews
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i would be very grateful , if u would send me the mail...
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