Experimental study of Mach reflection induced by collision of oblique shock waves in a lead plate

ZHANG Chongyu; HU Haibo; WANG Xiang; LIU Ningwen

doi:10.11883/bzycj-2017-0441

Volume 39 Issue 4

Mar. 2019

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ZHANG Chongyu, HU Haibo, WANG Xiang, LIU Ningwen. Experimental study of Mach reflection induced by collision of oblique shock waves in a lead plate[J]. Explosion And Shock Waves, 2019, 39(4): 043102. doi: 10.11883/bzycj-2017-0441

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Experimental study of Mach reflection induced by collision of oblique shock waves in a lead plate

doi: 10.11883/bzycj-2017-0441

1.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
2.
China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2017-12-08
Rev Recd Date: 2018-09-07

Available Online: 2019-03-25

Publish Date: 2019-04-01

Abstract

Abstract

Using the line-array DPS (Doppler pins system) test technique and a high-speed photoelectric frame camera, we diagnosed the shock wave reflection behavior induced by collision of oblique shock waves in a lead plate, accurately measured the velocity history and captured the bulge evolution images of the collision region. By processing the velocity curves, we obtained such experimental informations as the velocity variation, pressure distribution and plate surface damage. Furthermore, Combining the theory of shock wave reflection, we analyzed and explicated the dynamic behavior of the lead plate’s collision region, concluding that it was Mach reflection that occurred after two oblique shock waves collided.
- lead plate,
- colliding of oblique shock waves,
- Mach reflection,
- line-array DPS,
- high-speed photoelectric frame camera

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References(9)

References

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