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-   -   unsteady 1-D euler equations in a nozzle (http://www.cfd-online.com/Forums/main/15995-unsteady-1-d-euler-equations-nozzle.html)

Luca November 11, 2008 19:38

unsteady 1-D euler equations in a nozzle
 
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.

dileep mathews November 30, 2008 15:13

Re: unsteady 1-D euler equations in a nozzle
 
i would be very grateful , if u would send me the mail...


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