International Journal for Multiscale Computational Engineering

ISSN for PRINT: 1543-1649

For Online Access

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2007, Volume5

Issue 1

80 pages

DOI: 10.1615/IntJMultCompEng.v5.i1

Issue price - $138.00

S. van Veldhuizen
Department of Applied Mathematics and J.M. Burgers Center for Fluid Mechanics, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands

C. Vuik
Delft University of Technology, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft Institute of Applied Mathematics, J. M. Burgerscentrum, Mekelweg 4,2628 CD Delft, The Netherlands

Chris R. Kleijn
Delft University of Technology, Department of Multi Scale Physics,

In this study, various numerical schemes for transient simulations of 2D laminar reacting gas flows, as typically found in chemical vapor deposition reactors, are proposed and compared. These systems are generally modeled by means of many stiffly coupled elementary gas phase reactions between a large number of reactants and intermediate species. The purpose of this study is to develop robust and efficient solvers for the stiff reaction system, where as a first approach the velocity and temperature fields are assumed to be given. In this paper, we mainly focus on the performance of different time integration methods and their properties to success-fully solve the transient problem. Besides stability, which is important due to the stiffness of the problem, the preservation of nonnegativity of the species is crucial. It appears that this latter condition on time integration methods is much more restrictive toward the time step than stability.

DOI: 10.1615/IntJMultCompEng.v5.i1.10 Download article, 1-10 pages

Article price - $35.00

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