Influence of heavy-gas injection into supersonic boundary layer on its stability to controlled disturbances

Vladimir I. Lysenko, Boris V. Smorodsky, Yuri G. Ermolaev, Alexander D. Kosinov

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

Аннотация

The experimental investigation of the influence of the distributed heavy gas (sulfur hexafluoride of SF6) injection (into the wall layer of a boundary layer) on the hydrodynamic stability in relation to artificial (controlled) disturbances of the supersonic flat-plate boundary layer at free-stream Mach number M=2 have been performed. Controlled disturbances have been introduced into the boundary layer past the model by means of a harmonic point glow discharge disturbance generator. At different speeds of injection of sulfur hexafluoride, β-spectra (mean-square disturbance amplitudes depending on a longitudinal wave number β) measured at exciting frequency f=14 kHz, were defined and compared. It is shown (and for the first time experimentally for controlled disturbances) that such heavy-gas (sulfur-hexafluoride) injection leads to the boundary-layer stabilization, at least, at an exciting frequency.

Язык оригиналаанглийский
Название основной публикацииHigh Energy Processes in Condensed Matter, HEPCM 2019
Подзаголовок основной публикацииProceedings of the XXVI Conference on High-Energy Processes in Condensed Matter, dedicated to the 150th anniversary of the birth of S.A. Chaplygin
РедакторыVasily Fomin
ИздательAmerican Institute of Physics Inc.
ISBN (электронное издание)9780735418653
DOI
СостояниеОпубликовано - 26 июл 2019
Опубликовано для внешнего пользованияДа
Событие26th All-Russian Conference on High Energy Processes in Condensed Matter: Dedicated to the 150th Anniversary of the Birth of S.A. Chaplygin, HEPCM 2019 - Novosibirsk, Российская Федерация
Продолжительность: 3 апр 20195 апр 2019

Серия публикаций

НазваниеAIP Conference Proceedings
Том2125
ISSN (печатное издание)0094-243X
ISSN (электронное издание)1551-7616

Конференция

Конференция26th All-Russian Conference on High Energy Processes in Condensed Matter: Dedicated to the 150th Anniversary of the Birth of S.A. Chaplygin, HEPCM 2019
СтранаРоссийская Федерация
ГородNovosibirsk
Период03.04.201905.04.2019

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