Progress in physical modeling of compressible wall-bounded turbulent flows

C Cheng, X Chen, W Zhu, W Shyy, L Fu - Acta Mechanica Sinica, 2024 - Springer
Understanding, modeling and control of the high-speed wall-bounded transition and
turbulence not only receive wide academic interests but also are vitally important for high …

[HTML][HTML] Recent progress in conical shock wave/boundary layer interaction with spanwise pressure gradient

FY Zuo, S Pirozzoli - Propulsion and Power Research, 2024 - Elsevier
A common denominator between conical-symmetry and conical shock interaction is the
spanwise pressure gradient, which perform more non-uniformity and its interaction flow is …

Effect of convective schemes in wall-resolved and wall-modeled LES of compressible wall turbulence

F De Vanna, G Baldan, F Picano, E Benini - Computers & Fluids, 2023 - Elsevier
The current study discusses how numerical schemes and discretization approaches affect
wall-resolved and wall-modeled LES outcomes. A turbulent boundary layer setup over a flat …

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 …

Incorporating intrinsic compressibility effects in velocity transformations for wall-bounded turbulent flows

AM Hasan, J Larsson, S Pirozzoli, R Pecnik - Physical Review Fluids, 2023 - APS
A transformation that relates a compressible wall-bounded turbulent flow with nonuniform
fluid properties to an equivalent incompressible flow with uniform fluid properties is derived …

Linear-model-based study of the coupling between velocity and temperature fields in compressible turbulent channel flows

C Cheng, L Fu - Journal of Fluid Mechanics, 2023 - cambridge.org
It is generally believed that the temperature and the velocity fields are highly coupled in
compressible wall-bounded turbulence. In the present study, we employ a linear model, ie …

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 …

[HTML][HTML] URANOS: A GPU accelerated Navier-Stokes solver for compressible wall-bounded flows

F De Vanna, F Avanzi, M Cogo, S Sandrin… - Computer Physics …, 2023 - Elsevier
URANOS, a massively parallel GPU-accelerated compressible flow solver for high-fidelity
modeling of compressible wall flows, is presented. URANOS is based on modern high …

Direct numerical simulation of a supersonic turbulent boundary layer with hydrogen combustion

C Wang, C Xu - Journal of Fluid Mechanics, 2024 - cambridge.org
The complex behaviours of supersonic turbulent boundary-layer flows interacting with
combustion is explored through the use of direct numerical simulations. The chosen flow …

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 …