| 1 | | ==Rayleigh-Taylor Instability== |
| | 1 | = 2D Rayleigh-Taylor Instability = |
| | 2 | |
| | 3 | == Background on the problem == |
| | 4 | For background and problem setup see [http://www.astro.virginia.edu/VITA/ATHENA/rt.html] |
| | 5 | This page has information on both 2D and 3D simulations, Hydro and MHD, but the 2D Hydro case is the relevant one here. |
| | 6 | |
| | 7 | == Details of test == |
| | 8 | This test is run in order to verify that uniform gravity is working correctly. |
| | 9 | |
| | 10 | |
| | 11 | == Results == |
| | 12 | AstroBEAR should complete each of the subtests (one for each combination) successfully. |
| | 13 | |
| | 14 | This is determined by the linear growth rate of the instability. A simulation growth rate with a relative error of 1% or less with respect to the analytic growth rate is considered a successful test. |
| | 15 | |
