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Forum: Main CFD Forum

May 6, 2013, 18:14

Replies: 9

Exact solution - Euler equations

Views: 3,424

Posted By jakubstary

Yes, t(i) + h was the problem. Thanks Fabian82...

Yes, t(i) + h was the problem. Thanks Fabian82 :).

So if I apply now Runge Kutta 2nd order method on Euler equations or on other system of hyperbolic partial differential equations I get this:
U*...

Forum: Main CFD Forum

May 6, 2013, 06:47

Replies: 9

Exact solution - Euler equations

Views: 3,424

Posted By jakubstary

Please, has anybody any idea for my problem with...

Please, has anybody any idea for my problem with Runge Kutta? Thanks.

Jakub

Forum: Main CFD Forum

May 4, 2013, 14:40

Replies: 9

Exact solution - Euler equations

Views: 3,424

Posted By jakubstary

I implemented Euler and RK2 on ODEs, but I get...

I implemented Euler and RK2 on ODEs, but I get same bad results. In first few times RK2 is better than Euler, but after some time not. I enclosed figure with my results. In figure is Euler, RK2,...

Forum: Main CFD Forum

May 3, 2013, 10:00

Replies: 9

Exact solution - Euler equations

Views: 3,424

Posted By jakubstary

Solved

Thanks all. It was very helpful for me. I have one more question about solving Euler equations. Please can you get me a good tip again?

I use Euler method, Runge-Kutta 2nd order method and RK 4th...

Forum: Main CFD Forum

May 2, 2013, 14:07

Replies: 9

Exact solution - Euler equations

Views: 3,424

Posted By jakubstary

Exact solution - Euler equations

I work on numerical solution of Euler equations in 1D. I implemented some numerical schemes and now I need compare their accuracy due to the exact solution. But I don't know how to compute it. For...

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