Alexandre Jeandel, Fabien Favret, Laurence Lapenu, Eric Lariviere
Year:
1993
Bibliographic info:
Building Simulation, Australia, 1993, p. 291-298

ALLAN. SIMULATIONINEPTUNIX is a software designed at the GAZ DE FRANCE Research and Development Division and developed with the aid of CISI Ingenierie. It is a general software for the description and simulation of dynamic systems. ALLAN. Simulation is a pre-and post-processor. It is not a simulation software, and simulation is due to the choice of a solver. It is used at GAZ DE FRANCE and in other companies to describe and manage models for the NEPTUNIX 2 simulation program. It may also be used with ASTEC 4. The intention of this paper is to introduce the reader to the central concepts and reasons behind the ALLAN project. The latter was aimed primarily at enabling engineers to work in their natural languages, i.e. differential algebraic equations and/or system drawings, thus freeing them of the concern with computer programming and equation solving and making the reuse of previous work easier. Today, we can describe the actual implementation of the software, draw up an initial assessment of more than five years of operation and state some possibilities for new developements.