Three-dimensional interaction of a shock with a thin non-circular channel of low-density gasстатьяЭлектронная публикация
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 25 апреля 2019 г.
Аннотация:https://doi.org/10.1088/1742-6596/1129/1/012032
https://iopscience.iop.org/article/10.1088/1742-6596/1129/1/012032
Scopus eid=2-s2.0-85058803858, WOS:000467770900032
2018 JCR Impact Factor (WOS): No JCR
http://www.scimagojr.com 2018 – Q3, SJR: 0.221, Cites per Doc: 0.526 (20190622)
Numerical simulation of three-dimensional interaction of a shock with thin circular or non-circular – elliptic or rectangular – low-density gas channel is presented. Euler's equations for inviscid gas are solved using 5th-order finite-difference WENO scheme. Large-scaled shock wave precursor structure is described in detail. It is shown that in three-dimensional flow internal shear layer instabilities develop faster than in axisymmetric case. High-pressure jet cumulation effect is found to amplify moderately for elliptic and rectangular cases. An influence of channel cross-section shape on the precursor growth rate is studied. It is found that the duration of linear precursor growth phase is greatly increased for stretched channel cross-section shapes.
This study was performed according to the research plan of Institute of Mechanics of Lomonosov Moscow State University using the equipment of the shared research facilities of HPC computing resources of MSU with partial financial support of the Russian Foundation for Basic Research (projects no. 16-29-01092 and 18-01-00793).