Zakarya Laffane, Fethi Saidi, A. Souto-Iglesias, Y. Boualia, B. Hamoudi
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引用次数: 0
摘要
摘要:本文介绍了一种用于减小NACA 661-012型水翼阻力的被动型射流涡发生器的实验研究。被动吹风利用水翼下表面前缘的超压区作为水射流的来源，利用吹风管在水翼的上表面产生射流。采用250 mm长弦水翼模型，在(1.4 105 < Re < 2.8 105)雷诺数条件下，在马德里大学(UPM)的拖曳槽中进行了实验试验。结果表明，被动水射流涡发生器在减小阻力的同时，升力略有下降。
Experimental study on the performance of a hydrofoil using passive water-jet vortex generators
ABSTRACT This paper presents an experimental study of a passive version of the Water-jet vortex generator to reduce the drag force over a NACA 661-012 hydrofoil. The passive blowing used the overpressure zone at the leading edge of the hydrofoil’s lower surface as a source of water jets that create jets on the upper surface of the hydrofoil using the blowing tubes. The experimental tests were carried out in the towing tank in Universidad Politécnica de Madrid (UPM) with a hydrofoil model with a 250-mm long chord at Reynolds numbers of (1.4 105 < Re < 2.8 105). It was found that the passive water-jet vortex-generator reduces the drag force with a slight lift decrease.
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