Rayleigh–Taylor and Richtmyer–Meshkov instabilities: a journey through scales

Y Zhou, RJR Williams, P Ramaprabhu, M Groom… - Physica D: Nonlinear …, 2021 - Elsevier
Hydrodynamic instabilities such as Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM)
instabilities usually appear in conjunction with the Kelvin–Helmholtz (KH) instability and are …

Specific-heat ratio effects on the interaction between shock wave and heavy-cylindrical bubble: Based on discrete Boltzmann method

D Zhang, A Xu, J Song, Y Gan, Y Zhang, Y Li - Computers & Fluids, 2023 - Elsevier
Specific-heat ratio effects on the interaction between a planar shock wave and a two-
dimensional heavy-cylindrical bubble are studied by the discrete Boltzmann method …

Numerical study of interactions between shock waves and a circular or elliptic bubble in air medium

J Chen, F Qu, X Wu, Z Wang, J Bai - Physics of Fluids, 2021 - pubs.aip.org
The interaction of shock waves with bubbles is of interest in a variety of areas, such as shock
wave lithotripsy, cavitation erosion, and sonoluminescence. For these, the spatial …

Hypervelocity imperfect gas nozzle design with shared wave-elimination contour

B Zhang, S Yi, Y Zhao, R Yang, L He, X Lu - Physics of Fluids, 2023 - pubs.aip.org
A hypervelocity imperfect gas nozzle with a shared wave-elimination contour is designed by
the residual correction method, allowing the test Mach number to be varied by changing the …

Propagation of ionizing shock wave in a dusty gas medium under the influence of gravitational and azimuthal magnetic fields

G Nath - Physics of Fluids, 2022 - pubs.aip.org
In this paper, a closed-form solution for an ionizing spherical shock/blast wave in a dusty gas
(a mixture of an ideal gas and solid particles of micrometer size) under the influence of …

Streamwise vortex breakdown due to the interaction with crossed shock waves

T Hiejima - Journal of Fluid Mechanics, 2023 - cambridge.org
This paper presents a vortex breakdown study due to the interaction between a Batchelor
vortex and the crossing of oblique shock waves with Mach numbers of 3.5 and 5.0 …

A load-decoupling parallel strategy based on shared memory architecture for DSMC to simulate near-continuum gases

C Zhang, MH Wen, B Zhang, J Lin, H Liu - Computer Physics …, 2022 - Elsevier
Abstract Direct Simulation Monte Carlo (DSMC) method is gradually being applied to
simulate near-continuum flowfields. However, the large amount of computation hinders its …

[HTML][HTML] Simulations of the shock-driven Kelvin–Helmholtz instability in inclined gas curtains

B Romero, SV Poroseva, P Vorobieff, JM Reisner - Physics of Fluids, 2021 - pubs.aip.org
In this paper, we present simulation results for the two-dimensional, shock-driven Kelvin–
Helmholtz instability. Simulations are performed with a Mach 2.0 shock propagating through …

A circulation prediction model for ramp and vortex generator in supersonic flow: A numerical study

Z Wu, M He, B Yu, H Liu - Aerospace Science and Technology, 2022 - Elsevier
The circulation growth of supersonic streamwise vortex (SSV) formed by a ramp is
complicated and essential to estimate scramjet mixing behavior, while a predictive model for …

Flow structures of strong interaction between an oblique shock wave and a supersonic streamwise vortex

F Wei, R Yang, W Liu, Y Zhao, Q Wang, M Sun - Physics of Fluids, 2022 - pubs.aip.org
The oblique shock/vortex interaction (OSVI) is numerically investigated based on the large-
eddy simulation method. A Mach interaction between separated shock and incident shock …