Programs in Physics & Physical Chemistry
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|Manuscript Title: SEURAT: a Monte Carlo algorithm for calculating neutral gas transport in non-circular axisymmetric toroidal plasmas.|
|Authors: D.B. Heifetz, D.E. Post|
|Program title: SEURAT|
|Catalogue identifier: ABSI_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 29(1983)287|
|Programming language: Fortran.|
|Operating system: CRAY TIMESHARING SYSTEM (CTSS).|
|RAM: 244K words|
|Word size: 64|
|Keywords: Plasma physics, Thermonuclear fusion, Tokamak, Two-dimensional, Monte carlo, Neutral gas, Transport.|
Nature of problem:
Calculation of mass and energy transport by neutral particles in toroidally symmetric plasmas with non-circular poloidal cross sections.
Monte Carlo simulation of neutral particle flights through a fixed plasma, with scoring by a pseudo-collisional algorithm.
SEURAT has been applied to a wide variety of tomamak simulations, and contains a variety of checks which terminate the computation if it goes outside the range of validity of the model. A number of common input errors are checked for at the beginning of each computation.
SEURAT is a subroutine package designed for easy incorporation into general transport codes. It is written in 1966 ANSI standard FORTRAN. The machine word length is assumed to be >= 32 bits throughout, except for a pseudo-random number generator included for test comparisons, which assumes word length >= 36 bits. SUER AT uses a binary file generated by the auxiliary code SIGMAV described in section 2. OLYMPUS variable name spelling conventions are used, but no other OLYMPUS conventions or utilities are utilized. A driver is included for stand- alone operation.
A typical case, CPC2 described in section 7, required 4.451 CPU s on the CTSS.
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