Cavitation control on a 2D hydrofoil through a continuous tangential injection of liquid: Experimental study; AIP Conference Proceedings; Vol. 1770 : International Conference on the Methods of Aerophysical Research (ICMAR 2016)

Cavitation control on a 2D hydrofoil through a continuous tangential injection of liquid: Experimental study; AIP Conference Proceedings; Vol. 1770 : International Conference on the Methods of Aerophysical Research (ICMAR 2016)

Dettagli Bibliografici
Parent link:AIP Conference Proceedings
Vol. 1770 : International Conference on the Methods of Aerophysical Research (ICMAR 2016).— 2016.— [030026, 8 p.]
Ente Autore: Национальный исследовательский Томский политехнический университет (ТПУ) Энергетический институт (ЭНИН) Кафедра парогенераторостроения и парогенераторных установок (ПГС и ПГУ)
Altri autori: Timoshevsky M. V., Zapryagaev I. I., Pervunin K. S., Markovich D. M. Dmitry Markovich
Riassunto:Title screen
In the paper, the possibility of active control of a cavitating flow over a 2D hydrofoil that replicates a scaled-down model of high-pressure hydroturbine guide vane (GV) was tested. The flow manipulation was implemented by a continuous tangential liquid injection at different flow rates through a spanwise slot in the foil surface. In experiments, the hydrofoil was placed in the test channel at the attack angle of 9°. Different cavitation conditions were reached by varying the cavitation number and injection velocity. In order to study time dynamics and spatial patterns of partial cavities, high-speed imaging was employed. A PIV method was used to measure the mean and fluctuating velocity fields over the hydrofoil. Hydroacoustic measurements were carried out by means of a pressure transducer to identify spectral characteristics of the cavitating flow. It was found that the present control technique is able to modify the partial cavity pattern (or even totally suppress cavitation) in case of stable sheet cavitation and change the amplitude of pressure pulsations at unsteady regimes. The injection technique makes it also possible to significantly influence the spatial distributions of the mean velocity and its turbulent fluctuations over the GV section for non-cavitating flow and sheet cavitation.
Режим доступа: по договору с организацией-держателем ресурса
Lingua:inglese
Pubblicazione: 2016
Soggetti:
электронный ресурс
труды учёных ТПУ
контроль
кавитация
подводные крылья
2D
экспериментальное исследование
Accesso online:http://dx.doi.org/10.1063/1.4963968
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654144

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