Construction and comparison of parallel implicit kinetic solvers in three spatial dimensions

Авторы: Titarev Vladimir, Dumbser Michael, Utyuzhnikov Sergey
Журнал: Journal of Computational Physics
Том: 256
Год издания: 2014
Издательство: Academic Press
Местоположение издательства: United States
Первая страница: 17
Последняя страница: 33
DOI: 10.1016/j.jcp.2013.08.051
Аннотация: The paper is devoted to the further development and systematic performance evaluationof a recent deterministic framework Nesvetay-3D for modelling three-dimensional rarefiedgas flows. Firstly, a review of the existing discretization and parallelization strategies forsolving numerically the Boltzmann kinetic equation with various model collision integralsis carried out. Secondly, a new parallelization strategy for the implicit time evolutionmethod is implemented which improves scaling on large CPU clusters. Accuracy andscalability of the methods are demonstrated on a pressure-driven rarefied gas flow througha finite-length circular pipe as well as an external supersonic flow over a three-dimensionalre-entry geometry of complicated aerodynamic shape
Добавил в систему: Титарев Владимир Александрович

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