Experimental study of the reverse flow in the forward separation region in a pulsating flow around a spiked body

被引：15
|
作者：
Zapryagaev, V. I. [1 ]
Kavun, I. N. [1 ]
机构：
[1] Russian Acad Sci, Siberian Div, Khristianovich Inst Theoret & Appl Mech, Novosibirsk 630090, Russia
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2007年 / 48卷 / 04期
关键词：
supersonic flow; shock waves; self-sustained pulsations;
D O I：
10.1007/s10808-007-0062-3
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The flow with a free-stream Mach number M-infinity = 6 around a cylindrical body with a sharp spike is studied. The existence of a supersonic reverse flow for one of the phases of the pulsating flow regime is experimentally validated. A range of spike lengths is determined, which ensures a region of a supersonic reverse flow near the side surface of the spike. The time of existence of the supersonic reverse flow region is shown to be 0.15 of the period of pulsations if the spike length equals the model diameter.
引用
收藏
页码：492 / 500
页数：9
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