A parallel gas-kinetic Bhatnagar-Gross-Krook method for the solution of viscous flows on two-dimensional hybrid grids

Date

2009-01-01

Author

Ilgaz, M.
Tuncer, İsmail Hakkı

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In this study, a parallel implementation of gas-kinetic Bhatnagar-Gross-Krook method on two-dimensional hybrid grids is presented. Boundary layer regions in wall bounded viscous flows are discretised with quadrilateral grid cells stretched in the direction normal to the solid surface while the rest of the flow domain is discretised by triangular cells. The parallel solution algorithm on hybrid grids is based on the domain decomposition using METIS, a graph partitioning software. The flow solutions obtained in parallel significantly improve the computation time, a significant deficiency of gas-kinetic methods. Several validation test cases presented show the accuracy and robustness of the method developed.

Subject Keywords

Mechanical Engineering, Mechanics of Materials, Energy Engineering and Power Technology, Condensed Matter Physics, Computational Mechanics, Aerospace Engineering

URI

https://hdl.handle.net/11511/37901

Journal

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS

DOI

https://doi.org/10.1080/10618561003685520

Collections

Department of Aerospace Engineering, Article

Citation Formats

M. Ilgaz and İ. H. Tuncer, “A parallel gas-kinetic Bhatnagar-Gross-Krook method for the solution of viscous flows on two-dimensional hybrid grids,” INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS, vol. 23, no. 10, pp. 699–711, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37901.