Turbulent mixing of driver and driven gases in a shock tube channel

1985 ◽  
Vol 26 (2) ◽  
pp. 271-277 ◽  
Author(s):  
R. V. Vasil'eva ◽  
A. D. Zuev ◽  
V. L. Moshkov ◽  
L. G. Tkhorik ◽  
V. A. Shingarkina
Keyword(s):  
Shock Tube ◽  
Turbulent Mixing ◽  
Tube Channel

scholarly journals An experimental investigation of the turbulent mixing transition in the Richtmyer–Meshkov instability

2014 ◽  
Vol 748 ◽  
pp. 457-487 ◽  
Author(s):  
Christopher R. Weber ◽  
Nicholas S. Haehn ◽  
Jason G. Oakley ◽  
David A. Rothamer ◽  
Riccardo Bonazza
Keyword(s):  
Shock Tube ◽  
Mole Fraction ◽  
Turbulent Mixing ◽  
Mixing Layer ◽  
Initial Condition ◽  
Planar Laser ◽  
Interface Location ◽  
Scalar Variance ◽  
Fraction Distribution ◽  
Stagnation Plane

AbstractThe Richtmyer–Meshkov instability (RMI) is experimentally investigated in a vertical shock tube using a broadband initial condition imposed on an interface between a helium–acetone mixture and argon ($A\approx 0.7$). The interface is created without the use of a membrane by first setting up a flat, gravitationally stable stagnation plane, where the gases are injected from the ends of the shock tube and exit through horizontal slots at the interface location. Following this, the interface is perturbed by injecting gas within the plane of the interface. Perturbations form in the lower portion of this layer due to the shear between this injected stream and the surrounding gas. This shear layer serves as a statistically repeatable broadband initial condition to the RMI. The interface is accelerated by either a$M= 1.6 $or$M= 2.2 $planar shock wave, and the development of the ensuing mixing layer is investigated using planar laser-induced fluorescence (PLIF). The PLIF images are processed to reveal the light-gas mole fraction by accounting for laser absorption and laser-steering effects. The images suggest a transition to turbulent mixing occurring during the experiment. An analysis of the mole-fraction distribution confirms this transition, showing the gases begin to homogenize at later times. The scalar variance energy spectra exhibits a near$k^{-5/3}$inertial range, providing further evidence for turbulent mixing. Measurements of the Batchelor and Taylor microscales are made from the mole-fraction images, giving${\sim }150\ \mu \mathrm{m}$and 4 mm, respectively, by the latest times. The ratio of these scales implies an outer-scale Reynolds number of$6\text {--}7\times 10^4$.

A new large cross-section shock tube for studies of turbulent mixing induced by interfacial hydrodynamic instability

Shock Waves ◽  
2003 ◽  
Vol 12 (5) ◽  
pp. 431-434 ◽  
Author(s):  
L. Houas ◽  
G. Jourdan ◽  
L. Schwaederlé ◽  
R. Carrey ◽  
F. Diaz
Keyword(s):  
Shock Tube ◽  
Cross Section ◽  
Turbulent Mixing ◽  
Hydrodynamic Instability ◽  
Large Cross Section

Turbulent Mixing Zone Development in Shock Tube Experiments with Thin Film Separation

1995 ◽  
pp. 223-226
Author(s):  
A. I. Abakumov ◽  
E. E. Meshkov ◽  
P. N. Nizovtsev ◽  
V. V. Nikiforov ◽  
V. G. Rogachov
Keyword(s):  
Thin Film ◽  
Shock Tube ◽  
Turbulent Mixing ◽  
Mixing Zone ◽  
Zone Development ◽  
Film Separation

Hot-wire method for measurements of turbulent mixing induced by Richtmyer-Meshkov instability in shock tube

Shock Waves ◽  
2001 ◽  
Vol 11 (3) ◽  
pp. 189-197 ◽  
Author(s):  
G. Jourdan ◽  
L. Schwaederlé ◽  
L. Houas ◽  
J.-F. Haas ◽  
A.N. Aleshin ◽  
...  
Keyword(s):  
Shock Tube ◽  
Turbulent Mixing ◽  
Hot Wire ◽  
Wire Method
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