wiki:clumps_shockedclump

Version 3 (modified by trac, 12 years ago) ( diff )

clumps.shockedclump

Description

Description as of 10/28/08:

The clumps.shockedclump problem module is intended for 2 or 2.5D simulations of a clump being overrun by a shock. In 2.5D it is assumed the x-axis is the axis of symmetry. The clump may be round or square, and it may have nonzero x-velocity.

The shock may be planar, spherical, or a Sedov blast wave. The shock may also be chosen to be stationary, resulting in a nonzero ambient velocity. Cooling may be present.

The problem module reads in data from the clumps.data file to determine what to set up. The data files in this directory set up a spherical clump in 2.5D with 24 cells per clump radius. Cooling is turned on, and AMR is turned off due to the small problem size. The problem should take 20 minutes to run on 8 processors on nova.

System: hydro
Dimension: 2D, 2.5D
Sources: cooling, cylindrical
Linsolve: no
Parallel: yes
Aux fields: no
Code revision: 342

Additional Information

This module was used in the convergence study with strong cooling, from 6 to 1536 cells per clump radius. For that study, the following were the resolutions used:

Run Effective Achieved Number of
(cells per rc) Resolution Via Processors
6 48 x 12 48 x 12 + 0 1
12 96 x 24 96 x 24 + 0 1
24 192 x 48 192 x 48 + 0 4
48 384 x 96 384 x 96 + 0 8
96 768 x 192 384 x 96 + 1 16
192 1536 x 384 384 x 96 + 2 32
384 3072 x 768 768 x 192 + 2 32
768 6144 x 1536 1536 x 384 + 2 64
1536 12288 x 3072 3072 x 768 + 2 64

Location

contrib/astro/clumps/

Modules used

NodeInfoDef, GlobalDeclarations

Subroutines

InitializeClumps

PlaceClumps

b4stepClumps

CalcComp

See CalcComp's description.

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