Development of the Rayleigh-Taylor instability. Results of numerical simulation at low Reynolds numbers

S. P. Borisov, A. N. Kudryavtsev

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

The development of the Rayleigh-Taylor instability is studied by solving numerically two-dimensional Navier-Stokes equations for a viscous compressible gas in a uniform field of an external body force. The main attention is paid to the change in the flow pattern with an increase in the Knudsen number (and, accordingly, a decrease in the inversely proportional Reynolds number) and the increasing influence of the effects of viscosity and flow rarefaction. It is determined at what value of the Knudsen number the development of secondary Kelvin-Helmholtz instability is suppressed. Usually the Kelvin-Helmholtz instability plays the main role in the emergence of small-scale pulsations and the transition to turbulence. The dependence of the growth rate of the spike formed by the heavier gas on the flow rarefaction is studied.

Язык оригиналаанглийский
Название основной публикацииHigh-Energy Processes in Condensed Matter, HEPCM 2020
Подзаголовок основной публикацииProceedings of the XXVII Conference on High-Energy Processes in Condensed Matter, Dedicated to the 90th Anniversary of the Birth of RI Soloukhin
РедакторыVasily M. Fomin
ИздательAmerican Institute of Physics Inc.
Число страниц6
ISBN (электронное издание)9780735440180
DOI
СостояниеОпубликовано - 26 окт 2020
Событие27th Conference on High-Energy Processes in Condensed Matter, HEPCM 2020 - Novosibirsk, Российская Федерация
Продолжительность: 29 июн 20203 июл 2020

Серия публикаций

НазваниеAIP Conference Proceedings
Том2288
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

Конференция

Конференция27th Conference on High-Energy Processes in Condensed Matter, HEPCM 2020
СтранаРоссийская Федерация
ГородNovosibirsk
Период29.06.202003.07.2020

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