Dieses Thema wird derzeit nicht bearbeitet.

Die dynamische Prozess-Simulation ist ein wichtiges Werkzeug bei der Entwicklung, Analyse und Steuerung von Anlagen der Industrie. Hierbei sind große Systeme von Algebro-Differentialgleichungen (DAEs) zu lösen. Das am WIAS entwickelte Simulationskonzept nutzt nach dem Prinzip ”Teile und Herrsche” die modulare Struktur der Prozessmodelle aus und löst das DAE-System durch Block-strukturierte Verfahren. Das Konzept wurde im Simulator BOP implementiert und hat sich bei verschiedenen industriellen Anwendungen bewährt.

Ausführlichere Darstellungen der WIAS-Forschungsthemen finden sich auf der jeweils zugehörigen englischen Seite.


  Artikel in Referierten Journalen

  • E.K.Y. Yapp, R.I.A. Patterson, J. Akroyd, S. Mosbach, E.M. Adkins, J.H. Miller, M. Kraft, Numerical simulation and parametric sensitivity study of optical band gap in a laminar co-flow ethylene diffusion flame, Combustion and Flame, 167 (2016), pp. 320--334.

  • J. Pellerin, G. Caumon, Ch. Julio, P. Mejia-Herrera, A. Botella, Elements for measuring the complexity of 3D structural models: Connectivity and geometry, Computer & Geosciences, 76 (2015), pp. 130--140.

  • P. Collon-Drouaillet, W.S.-L. Steckiewicz-Laurent, J. Pellerin, G. Laurent, G. Caumon, G. Reichart, L. Vaute, 3D geomodelling combining implicit surfaces and Voronoi-based remeshing: A case study in the Lorraine coal basin, Computer & Geosciences, 77 (2015), pp. 29--43.

  • M. Liero, Passing from bulk to bulk/surface evolution in the Allen--Cahn equation, NoDEA. Nonlinear Differential Equations and Applications, 20 (2013), pp. 919--942.
    In this paper we formulate a boundary layer approximation for an Allen-Cahn-type equation involving a small parameter $eps$. Here, $eps$ is related to the thickness of the boundary layer and we are interested in the limit when $eps$ tends to 0 in order to derive nontrivial boundary conditions. The evolution of the system is written as an energy balance formulation of the L^2-gradient flow with the corresponding Allen-Cahn energy functional. By transforming the boundary layer to a fixed domain we show the convergence of the solutions to a solution of a limit system. This is done by using concepts related to Gamma- and Mosco convergence. By considering different scalings in the boundary layer we obtain different boundary conditions.

  Beiträge zu Sammelwerken

  • M. Arias Chao, D.S. Lilley, P. Mathé, V. Schlosshauer, Calibration and uncertainty quantification of gas turbines performance models, in: ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, Volume 7A: Structures and Dynamics, ASME and Alstom Technologie AG, 2015, pp. V07AT29A001--V07AT29A012.

  • J. Borchardt, D. Horn, The process simulator BOP, in: Chemical Engineering Transactions, S. Pierucci, ed., 6, AIDIC, Milano, 2005, pp. 251--256.

  Vorträge, Poster

  • N. Alia, V. John, Optimal control of ladle stirring, 1st Leibniz MMS Mini Workshop on CFD & GFD, WIAS Berlin, September 8 - 9, 2016.

  • R.I.A. Patterson, Monte Carlo simulation of soot, King Abdullah University of Science and Technology (KAUST), Clean Combustion Research Center, Thuwal, Saudi Arabia, January 11, 2016.

  • R.I.A. Patterson, Population balance simulation, University of Cambridge, Department for Chemical Engineering and Biotechnology, UK, May 5, 2016.

  • R.I.A. Patterson, Simulations of flame generated particles, Advances in Uncertainty Quantification Methods, Algorithms and Applications (UQAW 2016), January 5 - 10, 2016, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia, January 5, 2016.

  • H. Mai, Likelihood Inference for SDEs with jumps, Statistics for Stochastic Differential Equations, October 16 - 22, 2011, Forschungszentrum Oberwolfach (MFO), October 18, 2011.

  • K. Gärtner, Charge explosion simulations, 7th Meeting of the Detector Advisory Committee for the European XFEL, European XDAC, Hamburg, May 26, 2010.

  • K. Gärtner, Plasma effects --- Status of simulations (10'), 8th Meeting of the Detector Advisory Committee for the European XFEL, European XDAC, Hamburg, November 15, 2010.

  • J. Borchardt, The block oriented process simulator BOP, The Seventh Italian Conference on Chemical and Process Engineering (ICheaP-7), May 15 - 18, 2005, Giardini di Naxos, Italy, May 18, 2005.

  • J. Borchardt, F. Grund, D. Horn, Block-Orientierter Prozesssimulator BOP, ACHEMA 2003, Frankfurt am Main, May 19 - 24, 2003.

  • J. Borchardt, Solution of linear systems with sparse matrices and its application within the process simulator BOP, 5th International Congress on Industrial and Applied Mathematics (ICIAM 2003), July 7 - 11, 2003, Sydney, Australia, July 8, 2003.

  • J. Borchardt, Prozess-Simulation auf Parallelrechnern mit dem Simulator BOP, 23. Norddeutsches Kolloquium über Angewandte Analysis und Numerische Mathematik, May 31 - June 1, 2002, Universität Bremen, June 1, 2002.