DYNAMIC SIMULATION BY ALGORITHMIC GENERATED STRUCTURAL MODELS .2. PROLOG IMPLEMENTATION OF THE MODEL GENERATOR

The proposed model generator represents a completely new approach in t he dynamic simulation of process units in chemical engineering. Using this tool, instead of the manifold transformation of the model through the mathematical constructs and the numerical algorithm, the process unit is automatically mapped onto an executable Prolog program. Starti ng from the knowledge of the user-defined decomposition pattern and fr om the actual prototypes of the physical and chemical changes, the res pective balance elements and elementary transitions are algorithmicall y generated in the form of properly classified PROLOG clauses. The cal culation itself is simply carried out by the consecutive execution of the ranked elementary transitions. The user can communicate with the s ystem either through a user-friendly interface or directly via the gen erating database. The core definitions of the generating and executing metainterpreter can be supplemented by the user defined prototypes of the given field. In the second part of the paper the Prolog implement ation and the application of the model generator will be illustrated.