Toro No. 2 Drucken
Description

This Riemann problem consists of two rarefactions and a stationary contact discontinuity. A lot of numerical schemes fail in this test because the state in the middle between the two rarefactions is close to vacuum which is difficult to handle numerically. Since the internal energy is obtained via division of pressure by density the errors in the internal energy are very large. The results become slightly better if the reconstruction is done in primitive variables instead of conservative variables.

(All physical quantities are given in dimensionless units.)

Initial condition Video
   left
 right
 density
 1.0  1.0
 pressure  0.4
 0.4
 velocity  -2.0  2.0

 

 

Parameters
 Gamma
 1.4
 Theta  1.2
 Runtime  0.15
 Resolution  100

 

 

Solution at time t=0.15

 


Zuletzt aktualisiert am Montag, den 22. November 2010 um 16:03 Uhr