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International Journal for Multiscale Computational Engineering
IF: 1.016 5-Year IF: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Print: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v6.i1.10
pages 1-12

Validation of a Hybrid Navier-Stokes/DSMC Method for Multiscale Transient and Steady-State Gas Flows

Giannandrea Abbate
Technical University Delft
Chris R. Kleijn
Section of Transport Phenomena, Department of Chemical Engineering, Faculty of Applied Sciences Delft University of Technology and J. M. Burgerscentre for Fluid Dynamics Julianalaan, 2628 BL Delft
Barend J. Thijsse
Department of Material Science and Engineering, Delft University of Technology, Mekelweg 2, Delft, The Netherlands

ABSTRACT

We have validated a hybrid Navier−Stokes direct simulation Monte Carlo (DSMC) method for the multiscale simulation of compressible, viscous gas flows in both transient and steady state. The continuum domain is described by the unsteady Navier-Stokes equations, solved using a finite volume formulation in compressible form. The molecular domain is solved by the DSMC method. The coupling procedure is an overlapped Schwarz method with Dirichlet−Dirichlet boundary conditions. The validation was performed successfully against both DSMC numerical results and experimental data.


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