GASP-VI: Fortran Library for Modeling and Simulation
of Mixed Continuous and Discrete Processes with Concentrated and
Distributed Parameters
Introduction
GASP-VI offered an enhancement to
GASP-V. Whereas GASP-V could
simulate discontinuous models with concentrated parameters only, i.e.,
models that can be described by sets of ordinary differential equations
(ODEs) with discontinuities, GASP-VI should be able in addition to
simulate discontinuous models with distributed parameters, i.e., models
that are described by a set of partial differential equations (PDEs)
with discontinuities.
GASP-VI transformed PDEs to sets of ODEs by means of the Method of Lines
(MOL). The software basically reimplemented algorithms that had previously
been implemented in FORSIM-VI, a Fortran library for the simulation of
continuous processes with distributed parameters. FORSIM-VI had been
developed in the seventies by Mike Carver at the Atomic Energy of Canada.
The software was quite successful in the simulation of parabolic PDEs.
It was less well suited for the simulation of hyperbolic PDEs, as such
phenomena lead to discontinuities moving through space with time. Therefore,
discontinuities exist at all times somewhere in space, which makes it
impossible to isolate discrete events in time.
Most Important Publications
- Rimvall, C.M. and F.E. Cellier (1982),
The GASP-VI Simulation Package for Process-oriented Combined Continuous
and Discrete System Simulation,
Proc. 10th IMACS World Congress on Simulation and Scientific
Computation,
Montreal, Canada, pp.413-416.
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Last modified: January 22, 2006 -- © François Cellier