[HTML][HTML] Flow structures in transitional and turbulent boundary layers

C Lee, X Jiang - Physics of Fluids, 2019 - pubs.aip.org
The basic problems of transition in both incompressible and compressible boundary layers
are reviewed. Flow structures in low-speed transitional and developed turbulent boundary …

Theoretical, numerical and experimental study of hypersonic boundary layer transition: Blunt circular cone

J Chen, S Yi, X Li, G Han, Y Zhang, Q Yang… - Applied thermal …, 2021 - Elsevier
This article reviews the hypersonic laminar-turbulent boundary layer transition over a blunt
circular cone under support of the National Key Research and Development Program of …

An asymptotic theory of the roughness impact on inviscid Mack modes in supersonic/hypersonic boundary layers

M Dong, L Zhao - Journal of Fluid Mechanics, 2021 - cambridge.org
In this paper, we develop a large-Reynolds-number asymptotic theory to describe the impact
of a localised roughness element on oncoming inviscid first and second Mack modes in …

AIP conference proceedings

NN Fedorova, MA Goldfeld, SA Valger - AIP Conference Proceedings, 2020 - elibrary.ru
In the paper, the results of numerical modeling are presented of the 3D turbulent flows in a
channel with backward-facing step, and argon jets injected into the supersonic crossflow …

Effect of surface temperature strips on the evolution of supersonic and hypersonic Mack modes: asymptotic theory and numerical results

L Zhao, M Dong - Physical Review Fluids, 2022 - APS
In this paper, we perform an asymptotic study of the effect of local surface temperature
(heating or cooling) strips on oncoming inviscid Mack instability in supersonic or hypersonic …

Measurements of transition dominated by the second-mode instability at Mach 6

BC Chynoweth - 2018 - search.proquest.com
Hypersonic boundary-layer transition can be caused by many different mechanisms. This
research focuses on studying the growth and breakdown of the second-mode instability …

Toward an understanding of supersonic modes in boundary-layer transition for hypersonic flow over blunt cones

CH Mortensen - Journal of Fluid Mechanics, 2018 - cambridge.org
Realistic flight vehicles for reentry into the Earth's atmosphere are commonly similar to
blunted cones. The main reason for blunting a cone is to mitigate high heat loads at the …

Harmonic linearized Navier-Stokes equation on describing the effect of surface roughness on hypersonic boundary-layer transition

L Zhao, M Dong, Y Yang - Physics of Fluids, 2019 - pubs.aip.org
Laminar-turbulent transition is crucially influenced by wall roughness. This paper develops a
numerical approach based on the harmonic linearized Navier-Stokes (HLNS) equations to …

Optimal two-dimensional roughness for transition delay in high-speed boundary layer

R Jahanbakhshi, TA Zaki - Journal of Fluid Mechanics, 2023 - cambridge.org
The influence of surface roughness on transition to turbulence in a Mach 4.5 boundary layer
is studied using direct numerical simulations. Transition is initiated by the nonlinearly most …

[HTML][HTML] Nonstationary channel model of reentry plasma sheath for spacecraft: Overview, parameter estimation, and perspective

SHI Lei, LIU Zongyuan, BAO Weimin, YAO Bo… - Chinese Journal of …, 2024 - Elsevier
Abstract The Tracking, Telemetering, and Command (TT&C) communication of spacecraft
faces severe limitations during reentry. The Electromagnetic (EM) propagation channel is …