Rayleigh–Taylor and Richtmyer–Meshkov instability induced flow, turbulence, and mixing. II

Y Zhou - Physics Reports, 2017 - Elsevier
Abstract Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities are well-known
pathways towards turbulent mixing layers, in many cases characterized by significant mass …

Direct simulation Monte Carlo on petaflop supercomputers and beyond

SJ Plimpton, SG Moore, A Borner, AK Stagg… - Physics of …, 2019 - pubs.aip.org
The gold-standard definition of the Direct Simulation Monte Carlo (DSMC) method is given
in the 1994 book by Bird [Molecular Gas Dynamics and the Direct Simulation of Gas Flows …

Thermodynamically consistent physics-informed neural networks for hyperbolic systems

RG Patel, I Manickam, NA Trask, MA Wood… - Journal of …, 2022 - Elsevier
Physics-informed neural network architectures have emerged as a powerful tool for
developing flexible PDE solvers that easily assimilate data. When applied to problems in …

Molecular-level simulations of turbulence and its decay

MA Gallis, NP Bitter, TP Koehler, JR Torczynski… - Physical review …, 2017 - APS
We provide the first demonstration that molecular-level methods based on gas kinetic theory
and molecular chaos can simulate turbulence and its decay. The direct simulation Monte …

[HTML][HTML] Investigation of unsteady, hypersonic, laminar separated flows over a double cone geometry using a kinetic approach

O Tumuklu, DA Levin, V Theofilis - Physics of Fluids, 2018 - pubs.aip.org
Shock-dominated hypersonic laminar flows over a double cone are investigated using time
accurate direct simulation Monte Carlo combined with the residuals algorithm for unit …

A discontinuous Galerkin fast spectral method for the full Boltzmann equation with general collision kernels

S Jaiswal, AA Alexeenko, J Hu - Journal of Computational Physics, 2019 - Elsevier
The Boltzmann equation, an integro-differential equation for the molecular distribution
function in the physical and velocity phase space, governs the fluid flow behavior at a wide …

Effective permeability of carbon composites under reentry conditions

SJ Poovathingal, BM Soto, C Brewer - AIAA Journal, 2022 - arc.aiaa.org
Effective permeability of a porous carbon composite used as thermal protection system on
space capsules is computed using the direct simulation Monte Carlo technique. The …

Turbulence at the edge of continuum

MA Gallis, JR Torczynski, MC Krygier, NP Bitter… - Physical Review …, 2021 - APS
In typical turbulent flows, noncontinuum effects are extremely small and hence can be
ignored. However, for some high-Mach-number flows, the Kolmogorov length scale is of the …

Confinement-induced stabilization of the Rayleigh-Taylor instability and transition to the unconfined limit

S Alqatari, TE Videbæk, SR Nagel, AE Hosoi… - Science …, 2020 - science.org
The prevention of hydrodynamic instabilities can lead to important insights for understanding
the instabilities' underlying dynamics. The Rayleigh-Taylor instability that arises when a …

Non-equilibrium effects on flow past a circular cylinder in the slip and early transition regime

XJ Gu, RW Barber, B John… - Journal of Fluid …, 2019 - cambridge.org
This paper presents a comprehensive investigation into flow past a circular cylinder where
compressibility and rarefaction effects play an important role. The study focuses on steady …