Changes between Version 32 and Version 33 of u/ehansen


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Timestamp:
09/14/11 10:38:02 (13 years ago)
Author:
ehansen
Comment:

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  • u/ehansen

    v32 v33  
    77=== Rayleigh-Taylor Instability ===
    88The RT Instability...a dense fluid sitting on top of a light fluid.  When slightly perturbed the light fluid rises upwards, and the heavy fluid sinks downwards.  See this page for more details on the problem analysis and simulations: [wiki:ehansen/RT]
    9 This simulation shows a single mode perturbation.  It is run in 2D with a fixed grid of 100 x 300.
    10 * [attachment:RTmovie.gif RT Movie]
    11 [[BR]]
    12 For this run, all parameters are the same. The grid is now 50 x 150, and there are 3 levels of AMR which yields an effective resolution that is 4x the previous run.
    13 * [attachment:RTmoviehigh.gif RT Movie (Higher Resolution)]
    14 [[BR]]
    15 I realized that uniform gravity was not working properly in the first two simulations, so here is one in which it is working.  Also, this simulation is a 50 x 150 grid with 2 levels of AMR.  This set up could be the one to go into the test suite.
    16 * [attachment:rttestmovie.gif RT Movie (Gravity Working)]
     9
    1710[[BR]]
    1811