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 …

Stabilized methods for high-speed compressible flows: toward hypersonic simulations

D Codoni, G Moutsanidis, MC Hsu, Y Bazilevs… - Computational …, 2021 - Springer
A stabilized finite element framework for high-speed compressible flows is presented. The
Streamline-Upwind/Petrov–Galerkin formulation augmented with discontinuity-capturing …

Direct numerical simulation of high-speed transition due to an isolated roughness element

PK Subbareddy, MD Bartkowicz… - Journal of Fluid …, 2014 - cambridge.org
We study the transition of a Mach 6 laminar boundary layer due to an isolated cylindrical
roughness element using large-scale direct numerical simulations (DNS). Three flow …

Roughness-induced instability in a laminar boundary layer at Mach 6

B Wheaton, S Schneider - … Meeting Including the New Horizons Forum …, 2010 - arc.aiaa.org
Accurate prediction of boundary-layer transition is desired to predict heating and skin friction
on a hypersonic flight vehicle. Boundary-layer transition is caused by the growth of …

Implementation of self-aligned focusing Schlieren for hypersonic boundary layer measurements

JL Hill, MP Borg, EK Benitez, CL Running… - AIAA SciTech 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-2438. vid A self-aligned focusing
schlieren (SAFS) apparatus based on a recently published design is implemented for the …

Velocity profile measurements in hypersonic flows using sequentially imaged fluorescence-based molecular tagging

BF Bathel, PM Danehy, JA Inman, SB Jones, CB Ivey… - AIAA journal, 2011 - arc.aiaa.org
THE ability to perform quantitative velocity measurements in a hypersonic flow can be
complicated by the extreme dynamic and thermodynamic conditions present in hypersonic …

Direct numerical simulation of high-speed transition due to roughness elements

P Shrestha, GV Candler - Journal of Fluid Mechanics, 2019 - cambridge.org
We study and compare instability mechanisms of a Mach 5.65 laminar boundary layer
tripped by an isolated diamond-shaped trip and by an array of diamond-shaped trips using …

Geometry effect of isolated roughness on boundary layer transition investigated by tomographic PIV

Q Ye, FFJ Schrijer, F Scarano - International Journal of Heat and Fluid Flow, 2016 - Elsevier
Boundary layer transition over isolated roughness elements is investigated in the
incompressible flow regime using tomographic PIV. Four different geometries (cylinder …

Effects of surface roughness on shock-wave/turbulent boundary-layer interaction at Mach 4 over a hollow cylinder flare model

M Garcia, ENA Hoffman, EJ LaLonde, CS Combs… - Fluids, 2022 - mdpi.com
Although it is understood that surface roughness can impact boundary layer physics in high-
speed flows, there has been little research aimed at understanding the potential impact of …

High-speed boundary-layer transition induced by a discrete roughness element

PS Iyer, K Mahesh - Journal of Fluid Mechanics, 2013 - cambridge.org
Direct numerical simulation (DNS) is used to study laminar to turbulent transition induced by
a discrete hemispherical roughness element in a high-speed laminar boundary layer. The …