Flow structure of 2-D supersonic-supersonic ejector mixing chamber

Liu Shengtian; Qiu Xiongfei; Li Jinxue; Hu Xingwei; Guo Jianzeng

doi:10.11884/HPLPB201426.101007

Volume 26 Issue 10

Sep. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(10): 101007

Li Yunlong, Yang Haifeng, Yi Xuan, et al. Benchmark experiment and analysis of JMCT on nuclear critical safety[J]. High Power Laser and Particle Beams, 2017, 29: 016007. doi: 10.11884/HPLPB201729.160212

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Liu Shengtian, Qiu Xiongfei, Li Jinxue, et al. Flow structure of 2-D supersonic-supersonic ejector mixing chamber[J]. High Power Laser and Particle Beams, 2014, 26: 101007. doi: 10.11884/HPLPB201426.101007

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Flow structure of 2-D supersonic-supersonic ejector mixing chamber

doi: 10.11884/HPLPB201426.101007

1.
Handan Purification Equipment Research Institute,Handan 056027,China

Received Date: 2013-10-19
Rev Recd Date: 2014-03-28
Publish Date: 2014-09-23

Abstract

Abstract

The test facility of 2-D supersonic-supersonic ejector was constructed. Varieties of tests were carried out to investigate the starting and load characteristics of a second throat ejector. The schlieren photographs of the mixing chamber flow field were got by schlieren apparatus synchronously. The experimental results show that there are shocks brought by background pressure in mixing chamber fore part while the ejector starts critically.It is possible that the main shocks originate from the mixing chamber rearward while the ejector starts completely. Secondary flow has booster action for ejector starting which can make shocks to move backward in evidence. As the secondary flow is injected, the mixing layer between primary and secondary flow will occur obviously. If the pressures of primary and secondary flow are not matched, a strong oblique shock wave will be formed at nozzle exit inwall, which will be reflected between the wall and mixing layer, then the capability of primary flow will be reduced.
- high energy laser,
- pressure recovery,
- 2-D ejector,
- supersonic flow,
- schlieren technology

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