On flows behind shock waves reflected from a solid wall

Y. Onishi

doi:10.1007/bf01418885

Waves reflected by solid wall in the mixture of liquid with vapour bubbles

Vietnam Journal of Mechanics ◽

10.15625/0866-7136/24/3/6618 ◽

2002 ◽

Vol 24 (3) ◽

pp. 167-180

Author(s):

Duong Ngoc Hai ◽

Nguyen Van Tuan

Keyword(s):

Shock Waves ◽

Volume Fraction ◽

Initial Conditions ◽

Solid Wall ◽

Vapour Phase ◽

Gas Mixtures ◽

Industrial Processes ◽

Shock Strength ◽

Stationary Shock ◽

The Waves

The liquid and gas mixtures are met in many natural and industrial processes. In the paper the results of investigation of waves reflected by solid wall of the stationary shock waves with moderate intensities or the transient pulses propagated in the mixture of liquid with vapour bubbles are presented. The effect of initial conditions, shock strength, size of the bubbles and volume fraction of vapour phase on the behaviour of the waves reflected by solid wall is studied.

Download Full-text

Reflection of plane shock waves from a solid wall in a gas bubble-liquid system

Fluid Dynamics ◽

10.1007/bf01091684 ◽

1978 ◽

Vol 13 (2) ◽

pp. 306-310 ◽

Cited By ~ 1

Author(s):

B. E. Gel'fand ◽

S. A. Gubin ◽

E. I. Timofeev

Keyword(s):

Shock Waves ◽

Solid Wall ◽

Liquid System ◽

Plane Shock ◽

Gas Bubble ◽

Bubble Liquid

Download Full-text

Investigation of shock-wave deformation history from recovered structure

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100143754 ◽

1986 ◽

Vol 44 ◽

pp. 434-435

Author(s):

M.A. Mogilevsky ◽

L.S. Bushnev

Keyword(s):

Shock Wave ◽

Plastic Deformation ◽

Dislocation Density ◽

Shock Waves ◽

Shock Front ◽

Single Crystals ◽

Residual Deformation ◽

Deformation Structure ◽

Deformation History ◽

Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

Download Full-text