Solving the Boltzmann equation on GPU

Authors

  • Yu.Yu. Kloss
  • F.G. Tcheremissine
  • P.V. Shuvalov

Keywords:

GPU
CUDA
massively-parallel computation
Boltzmann equation
rarefied gas

Abstract

The paper describes an implementation of the conservative projection method for solving the Boltzmann equation on GPU. The NVidia CUDA technology is used as a computational platform. Methods for an optimal implementation of a solver for two-dimensional geometry and methods for setting boundary conditions, implementation of the geometry, and storage of integrating grids are developed. The developed approach is used to perform computations for the problem of slow gas flow in a rectangular cavity and the problem of shock wave propagation in a narrow channel. The efficiency of using GPU for the analysis of slow and high-speed flows of rarefied gas is shown.

New computational technologies

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Published

2010-04-08

Issue

Vol. 11 (2010): Issue 1.

Section

Section 1. Numerical methods and applications

Author Biographies

Yu.Yu. Kloss

National Research Center «Kurchatov Institute»
• Associate Professor, Head of Department

F.G. Tcheremissine

Dorodnicyn Computing Centre of RAS
• Professor, Chief Researcher

P.V. Shuvalov

Moscow Institute of Physics and Technology
• Student

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