Relativistic MHD Tests
This page will serve to catalogue all of the YouTube videos for the relativistic MHD tests. The tests that were run are all from Beckwith (2011), the relavant section of the paper will be cited along with the test problem.
Field Loop Advection
This is the test in section 4.2. In this test a field loop is advected across the grid at 0.1c. The movie resolution is 800x400 and it goes till t=40. The CFL=0.2 with eps=0.1 for all the waves.
This is the test in section 4.3. In this test a current sheet is established by creating a shear layer in the velocity along with a magnetic field sign reversal at 0.5 and 1.5. The resolution is 512x512 and it goes until t=10. The CFL=0.4 and eps=0.1.
Orszag Tang Vortex
This is the test in section 4.4. This is the relativistic version of the Orszag Tang Vortex. The resolution is 512x512 and goes until t=1. The CFL=0.4 and eps=0.1.
Cylindrical Blast Waves
This is the test in section 4.6. All the blast waves here have a resolution of 512x512 and go until t=4. Unless otherwise noted the CFL=0.1 and eps=0.1.
The first test has the magnetic field aligned with the x-axis with B=0.1 and P=5x10-4.
The second test has the field at 45o to the x-axis but with the same strength and ambient gas pressure. The eps in this case is 0.15.
The third test has the field aligned with the x-axis again but now raises the ambient gas pressure to 5x10-3.
The fourth test is the same as the third test but with B=0.5.
Finally the fifth test is the same as the previous two but with B=1.0. The CFL in this case is 0.05.
This test is from section 4.7. This is a Kelvin-Helmholtz instability with the high density flow going right at 0.5c and the low density flow going left at 0.5c. This simulation is 512x1024 and goes to t=10. The CFL=0.4 and the eps=0.1. First we will show the density.
Next the passive tracer.
That is it for the 2-d Tests.
Beckwith, K. & Stone, J. M. 2011, ApJS, 193, 6 (ADS Link)