Assimilation of wall-pressure measurements in high-speed flow over a cone

DA Buchta, SJ Laurence, TA Zaki - Journal of Fluid Mechanics, 2022 - cambridge.org
A nonlinear ensemble-variational data assimilation is performed in order to estimate the
unknown flow field over a slender cone at Mach 6, from isolated wall-pressure …

[HTML][HTML] Direct numerical simulation of compressible turbulence accelerated by graphics processing unit: An open-access database of high-resolution direct numerical …

G Dang, S Liu, T Guo, J Duan, X Li - AIP Advances, 2022 - pubs.aip.org
In the author's previous work, we introduced an open-source accelerated computational fluid
dynamics code for scientific computations using a graphics processing unit system …

Relaminarization effects on a three-dimensional cone-slice-ramp geometry at Mach 8

A Pandey, A Jirasek, AJ Saltzman, KM Casper… - AIAA SCITECH 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-0269. vid This study explores the
evolution of a Mach 8 boundary layer over a spanwise finite expansion-compression …

[HTML][HTML] Flow transition to turbulence and induced acoustics at Mach 6

D Drikakis, K Ritos, SM Spottswood, ZB Riley - Physics of Fluids, 2021 - pubs.aip.org
This paper presents the results of implicit large eddy simulation (iLES) and direct numerical
simulation (DNS) for flow and acoustics for transitional and turbulent boundary layer over a …

Transducer resolution effect on pressure fluctuations beneath hypersonic turbulent boundary layers

J Huang, L Duan, KM Casper, RM Wagnild, NP Bitter - AIAA Journal, 2024 - arc.aiaa.org
The size of a pressure transducer is known to affect the accuracy of measurements of wall-
pressure fluctuations beneath a turbulent boundary layer because of spatial averaging over …

Aero-Optical Distortions of Turbulent Boundary Layers: Hypersonic DNS

NE Miller, KP Lynch, S Gordeyev… - AIAA Scitech 2022 …, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-0056. vid Four Direct Numerical
Simulation (DNS) datasets covering effective freestream Mach numbers of 8 through 14 are …

Wavelet analysis of high-speed transition and turbulence over a flat surface

G Khujadze, D Drikakis, K Ritos, IW Kokkinakis… - Physics of …, 2022 - pubs.aip.org
This paper presents a study of high speed boundary layers using the wavelet method. We
analyze direct numerical simulation data for highspeed, compressible transitional, and …

Aero-optical distortions of turbulent boundary layers: DNS up to Mach 8

NE Miller, D Guildenbecher, KP Lynch - AIAA Aviation 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-2832. vid The character of aero-
optical distortions produced by turbulence is investigated for subsonic, supersonic, and …

Wall pressure fluctuations beneath hypersonic boundary layer over plate

XJ Zhao, L Zhao - AIAA Journal, 2021 - arc.aiaa.org
Wall pressure fluctuations beneath a boundary layer are the main cause of structural
vibration for hypersonic aircraft. To accurately predict the load environment of pressure …

Direct-Numerical Simulation with the Stability Theory for Turbulent Transition in Hypersonic Boundary Layer

H Bae, J Lim, M Kim, S Jee - … Journal of Aeronautical and Space Sciences, 2023 - Springer
Laminar-to-turbulent transition in hypersonic boundary layer is numerically investigated
using the direct-numerical simulation (DNS) method combined with the linear stability theory …