Accession Number : ADA192285

Title :   MACH2: A Two-Dimensional Magnetohydrodynamic Simulation Code for Complex Experimental Configurations.

Descriptive Note : Interim rept.,

Corporate Author : MISSION RESEARCH CORP ALBUQUERQUE NM

Personal Author(s) : Frese, Michael H

PDF Url : ADA192285

Report Date : Sep 1987

Pagination or Media Count : 93

Abstract : MACH2 is a flexible and powerful two-dimensional magnetohydrodynamic simulation code designed specifically to handle complex experimental configurations. The code's capabilities include a numerically generated solution-adaptive grid which permits it to be used for either Eulerian or Lagrangian flow problems, use of real equations of state and transport properties from the Los Alamos National Laboratory SESAME package, and a multigrid implicit magnetic field diffusion solver which can be used to simulate problems with vacuum. The descriptive power of the namelist-based problem input language is sufficient that no code modifications are required to set up any of a broad class of problems. Almost no knowledge of the internal data structures and numerical techniques is required to do simulations that realistically model complex experiments. This is made possible by the code's multiblock architecture and table-driven control structure. Code reliability and flexibility are ensured and enhanced by a structured and modular implementation of boundary conditions and block coupling. This report details the physical model, including boundary conditions; permissible problem geometries; time differencing; and spatial discretization, centering, and differencing of MACH2. Keywords: Magnetohydrodynamics, Plasmas(Physics), Simulation, Two Dimensional, Computer code, Hydrodynamic codes.

Descriptors :   *HYDRODYNAMIC CODES, *MAGNETOHYDRODYNAMICS, *PLASMAS(PHYSICS), BOUNDARIES, CODING, COMPUTER PROGRAMS, CONFIGURATIONS, COUPLING(INTERACTION), DATA BASES, DIFFUSION, EQUATIONS OF STATE, INTERNAL, LAGRANGIAN FUNCTIONS, MAGNETIC FIELDS, MODEL TESTS, MODELS, MODIFICATION, NUMERICAL METHODS AND PROCEDURES, PHYSICAL PROPERTIES, POWER, RELIABILITY, SIMULATION, TRANSPORT PROPERTIES, TWO DIMENSIONAL, VACUUM, COMPUTER PROGRAMMING

Subject Categories : Plasma Physics and Magnetohydrodynamics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE