PLUTO Test Problems
4.4-patch2
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Isentropic vortex problem. More...
Functions | |
void | InitDomain (Data *d, Grid *grid) |
The isentropic vortex is a smooth exact solution of the 2D Euler equations. It consists of a single vortex centered at (5,5) in pressure equilibrium:
where while
is the adiabatic index. A constant entropy is used with value
s=1
. The vortex shifts along the main diagonal of the computational domain with uniform velocity (1,1) and returns in its original position after
t=10
. The domain is assumed to be periodic and its size must be taken large enough to ensure there is no interaction between off-domain vortices.
The vortex problem is often used as computational benchmark to test the accuracy and dissipation of a numerical scheme in reproducing the vortex structure after several revolutions.
There're no input parameters for this problem.
References