Direct numerical simulation of hypersonic turbulent boundary layers: effect of spatial evolution and Reynolds number

J Huang, L Duan, MM Choudhari - Journal of Fluid Mechanics, 2022 - cambridge.org
Direct numerical simulations (DNS) are performed to investigate the spatial evolution of flat-
plate zero-pressure-gradient turbulent boundary layers over long streamwise domains () …

Direct numerical simulation database for supersonic and hypersonic turbulent boundary layers

C Zhang, L Duan, MM Choudhari - AIAA journal, 2018 - arc.aiaa.org
This paper presents a direct numerical simulation database of high-speed zero-pressure-
gradient turbulent boundary layers developing spatially over a flat plate with nominal …

Direct numerical simulation of supersonic and hypersonic turbulent boundary layers at moderate-high Reynolds numbers and isothermal wall condition

M Cogo, F Salvadore, F Picano… - Journal of Fluid …, 2022 - cambridge.org
We study the structure of high-speed zero-pressure-gradient turbulent boundary layers up to
friction Reynolds number and heat transfer at the wall are considered. The present …

Statistics and dynamics of coherent structures in compressible wall-bounded turbulence

M Yu, SW Dong, XX Yuan, CX Xu - Science China Physics, Mechanics & …, 2024 - Springer
Compressible wall-bounded turbulence is ubiquitously encountered in modern aerospace
and mechanical industries. In this review, we summarize the current state of the literature on …

Linear response analysis of supersonic turbulent channel flows with a large parameter space

X Chen, C Cheng, L Fu, J Gan - Journal of Fluid Mechanics, 2023 - cambridge.org
In this work, the linear responses of turbulent mean flow to both harmonic and stochastic
forcing are investigated for supersonic channel flow. Well-established universal relations are …

Study of the linear models in estimating coherent velocity and temperature structures for compressible turbulent channel flows

X Chen, C Cheng, J Gan, L Fu - Journal of Fluid Mechanics, 2023 - cambridge.org
Linear models, based on stochastically forced linearized equations, are deployed for
spectral linear stochastic estimation (SLSE) of the velocity and temperature fluctuations in …

Large-scale motions and self-similar structures in compressible turbulent channel flows

C Cheng, L Fu - Physical Review Fluids, 2022 - APS
In this work, we study the scale characteristics of the log-and outer-region motions and
structures in subsonic and supersonic turbulence. To this end, a series of direct numerical …

Batchelor Prize Lecture: Measurements in wall-bounded turbulence

AJ Smits - Journal of Fluid Mechanics, 2022 - cambridge.org
Our understanding of turbulent boundary layer scaling and structure has advanced greatly in
the past 20 to 30 years. On the computational side, direct numerical simulations and large …

Large-scale coherent structures in compressible turbulent boundary layers

M Bross, S Scharnowski, CJ Kähler - Journal of Fluid Mechanics, 2021 - cambridge.org
The presence of large-scale coherent structures in various wall bounded turbulent flows,
often called superstructures in turbulent boundary layers (TBLs), has been of great interest …

Direct numerical simulation of supersonic pipe flow at moderate Reynolds number

D Modesti, S Pirozzoli - International Journal of Heat and Fluid Flow, 2019 - Elsevier
We study compressible turbulent flow in a circular pipe at computationally high Reynolds
number. Classical related issues are addressed and discussed in light of the DNS data …