Steady energy deposition at Mach 5 for drag reduction

被引：32
作者：
Erdem, E. [1 ]
Kontis, K. [1 ]
Yang, L. [1 ]
机构：
[1] Univ Manchester, Sch MACE, Manchester, Lancs, England
来源：
SHOCK WAVES | 2013年 / 23卷 / 04期
关键词：
Hypersonic flows; Measurements; Vortex dynamics; BLUNT-BODY; FLOW;
D O I：
10.1007/s00193-012-0405-8
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Experiments addressing the effect of energy deposition via arc discharge on half angle-truncated cone-cylinder configurations at Mach 5 flow were carried out. The arc discharge was accomplished using a setup that consisted of a power supply, a high voltage unit and tungsten electrodes. Discharge-on tests were compared to discharge-off tests to evaluate the net effect of the energy deposition. Flow visualisation revealed the presence of a heated wake downstream of the energy spot. Compression waves were observed on top of the wake of the heated channel, which were oscillatory in nature. The deposited energy of 7 W shows a repeatable influence on the measured drag force for all the models at close arc-to-nose distances.
引用
收藏
页码：285 / 298
页数：14
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