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Contaminent Dispersion around an M1 Battle Tank
Matthew J. Litke
In this numerical simulation, contaminant dispersion around a M1 Battle
Tank was computed on the Cray T3D massively parallel supercomputer.
The geometry of the M1 Tank was modeled using an interactive 3D program*
(see fig.1). The model was then fed
into an automatic mesh
generation program* to create a surface mesh of the tank and
its domain (see fig.2). Another
automatic mesh generation
program* used this surface mesh to create the 3D mesh
used by the finite element simulation
codes. Using a flow simulation code*
the Navier-Stokes equations were solved (see fig.4).
After obtaining the fluid-flow solution, the data was used with an
advection-diffusion code* to simulate a contaminant dispersion around
the M1 Tank (see fig.5 and
*Programs and codes used for this simulation were developed
by the T*AFSM.
Fig.1: An actual M1 Tank in the field (left)
and the geometry of the computer generated model (right).
Fig.2: The surface mesh of the tank and part
of the outer domain.
Fig.3: A 2D slice of the 3D mesh.
Fig.4: The pressure distribution on the tank's surface (top) and
veloctiy vectors in a 2D plane cutting through the tank (bottom).
Fig.5: Solutions to two different time steps of the