Different Variants of R13 Moment Equations Applied to the Shock-wave Structure

Timokhin, M.Y.; Struchtrup, H.; Kokhanchik, A.A.; Bondar, Y.A.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 октября 2018 г.

Авторы: Timokhin M.Yu, Struchtrup H., Kokhanchik A.A., Bondar Ye A.
Журнал: Physics of Fluids
Том: 29
Номер: 3
Год издания: 2017
Издательство: AIP Publishing
Местоположение издательства: United States
Первая страница: 037105
DOI: 10.1063/1.4977978
Аннотация: Various versions of the regularized 13-moment system (R13) are applied to the problem of the shock wave structure in a monatomic Maxwell gas for Mach numbers up to M=10. Numerical solutions are compared to DSMC results computed by the SMILE++ software system, in order to identify applicability and limitations of the variants. Over time, several versions of the R13 equations were presented, which differ in non-linear contributions for high-order moments, but agree in asymptotic expansion to third order in the Knudsen number. All variants describe typical subsonic micro-flows well, for which the non-linear contributions only play a minor role. The challenge of the present study is to determine the real boundaries of applicability of each variant of the moment equations as applied to non-equilibrium supersonic flows, depending on the Mach number and local Knudsen number.
Добавил в систему: Тимохин Максим Юрьевич

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Different Variants of R13 Moment Equations Applied to the Shock-wave Structureстатья

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