Authors:
Tanja Clees
;
Kläre Cassirer
;
Nils Hornung
;
Bernhard Klaassen
;
Igor Nikitin
;
Lialia Nikitina
;
Robin Suter
and
Inna Torgovitskaia
Affiliation:
Fraunhofer Institute for Algorithms and Scientific Computing, Germany
Keyword(s):
Simulation Tools and Platforms, Complex Systems Modeling and Simulation, Optimization of Non-Linear Systems, Simulation of Transport Networks.
Related
Ontology
Subjects/Areas/Topics:
Complex Systems Modeling and Simulation
;
Computer Simulation Techniques
;
Fluid Dynamics
;
Formal Methods
;
Green Technologies
;
Mathematical Simulation
;
Non-Linear Systems
;
Optimization Issues
;
Simulation and Modeling
;
Simulation Tools and Platforms
Abstract:
We present a generic approach for the simulation of transport networks, where the steps of physical modeling
and numerical simulation are effectively separated. The model is described by a list of physical equations and
inequalities as problem constraints for non-linear programming (NLP). This list is translated to the language of
expression trees and is made accessible for the numerical solution by standard NLP solvers. Various problem
types can be solved in this way, including stationary and transient network simulation, feasibility analysis and
energy-saving optimization. The simulation is provided for different disciplines, such as gas transport, water
supply and electric power networks. We demonstrate the implementation of this approach in our multiphysics
network simulator.