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Article
New interface formation method for shock–interface interaction studies
We propose a new interface formation method for shock–interface interaction studies by using the super-hydrophobic–oleophobic surface instead of filaments to constrain the soap–film interface. To verify this m...
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Article
Interaction of a shock with two concentric/eccentric cylinders
Interaction of a plane shock with two concentric/eccentric cylinders is investigated for the first time. The concentric/eccentric cylinders with a circular air cylinder embedded into an elliptic
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Article
Effect of Atwood number on convergent Richtmyer–Meshkov instability
Developments of two-dimensional single-mode light/heavy interfaces driven by convergent shock waves are numerically investigated, focusing on the effect of the Atwood number on the Rayleigh–Taylor stabilizatio...
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Article
Mode coupling in converging Richtmyer–Meshkov instability of dual-mode interface
The converging Richtmyer–Meshkov (RM) instability on single- and dual-mode \(\hbox {N}_2\)N2/\(\hbox {SF}_6\)SF6 interfaces is studied by an upwind conservation element and solution element solver. An unperturbed...
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Article
Numerical study on Rayleigh-Taylor effect on cylindrically converging Richtmyer-Meshkov instability
Evolution of a two-dimensional air/SF6 single-mode interface is numerically investigated by an upwind CE/SE method under a cylindrically converging circumstance. The Rayleigh-Taylor effect caused by the flow dece...
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Article
Effects of aspect ratio on shock-cylinder interaction
Interaction of a planar shock wave with a discontinuous \(\hbox {SF}_6\) ...
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Chapter and Conference Paper
Interaction of Cylindrical Converging Shock Wave with SF6 Gas Bubble
Interaction of cylindrical converging shock wave with an SF6 gas bubble is studied experimentally and numerically. A high-speed schlieren photography and three-dimensional (3D) program are adopted to capture the ...
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Chapter and Conference Paper
Experimental Study on a Single-Mode Interface Impacted by a Converging Shock
Experiment of a single-mode air/SF6 interface impacted by a converging shock is performed in a semi-annular converging shock tube, and complete evolution of the shock propagation and the interface deformation is ...
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Chapter and Conference Paper
Numerical Study on the Single-Mode Richtmyer-Meshkov Instability in a Cylindrical Geometry
Evolution of a single-mode air/SF6 interface accelerated by a converging shock is investigated numerically. For comparison, a planar case with the same perturbation amplitude and wavelength as well as the initial...
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Article
Interaction of strong converging shock wave with SF6 gas bubble
Interaction of a strong converging shock wave with an SF6 gas bubble is studied, focusing on the effects of shock intensity and shock shape on interface evolution. Experimentally, the converging shock wave is gen...
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Article
Effects of Atwood number on shock focusing in shock–cylinder interaction
The evolution of shock-accelerated heavy-gas cylinder surrounded by the air with different Atwood numbers ( \(A_t=0.28, 0.50, 0.63\) ...
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Chapter and Conference Paper
Reflection of Cylindrical Converging Shock Wave Over Wedge
The cylindrical converging shock reflection over a plane wedge is investigated experimentally and numerically in a specially designed shock tube which converts a planar shock into a cylindrical one. When the c...
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Chapter and Conference Paper
Experimental Study on the Interaction of Cylindrical Converging Shock Waves with Sinusoidal Light-Heavy Interface
Richtmyer-Meshkov (RM) instability occurs when an initially perturbed interface separating two different fluids is impulsively accelerated by a shock wave, which was first investigated theoretically by Richtmy...
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Article
Energy convergence effect and jet phenomenon of shock-heavy spherical bubble interaction
We present computational results on the evolution of the shock-accelerated heavy bubbles surrounded by nitrogen with the Atwood number A t = 0.4...
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Chapter and Conference Paper
Experimental Study of the Richtmyer-Meshkov Instability Induced by Cylindrical Converging Shock Waves
The Richtmyer-Meshkov (RM) instability induced by converging shock waves becomes more and more attractive because of its physical applications in shock-wave lithotripsy, inertial confinement fusion, turbulent ...
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Chapter and Conference Paper
On the Evolution of Reshocked Gas Cylinder Under Planar and Converging Shock Conditions
Richtmyer-Meshkov instability (RMI) [1, 2] arises when an interface separating two fluids with different densities is impacted by an impulsive acceleration. Due to the baroclinic mechanism, the initial perturb...
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Article
Evolution of heavy gas cylinder under reshock conditions
The developments of a membrane-less SF6 gas cylinder under reshock conditions are experimentally investigated in this work. Illuminated by a continuous laser sheet, the interface morphology is characterized by gl...
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Article
Numerical study on the evolution of the shock-accelerated SF6 interface: Influence of the interface shape
The early phases of the shock interaction process on two-dimensional interfaces with different shapes are numerically investigated in this study, which are closely related to the shock refraction and reflectio...
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Chapter and Conference Paper
Investigations on a Gaseous Interface Accelerated by a Converging Shock Wave
The shock-accelerated inhomogeneous flows have been widely investigated for the fundamental interests and diverse applications in a broad range of spatial, temporal and energy scales, such as the supernova exp...
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Chapter and Conference Paper
Experimental Study on a Heavy-Gas Cylinder Accelerated by Cylindrical Converging Shock Waves
When an initially perturbed interface separating two fluids with different properties is impulsively accelerated by a shock wave, the flow field will exhibit complex fluid dynamic phenomena due to the misalign...
