Progress in physical modeling of compressible wall-bounded turbulent flows
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 …
turbulence not only receive wide academic interests but also are vitally important for high …
Velocity transformation for compressible wall-bounded turbulent flows with and without heat transfer
In this work, a transformation, which maps the mean velocity profiles of compressible wall-
bounded turbulent flows to the incompressible law of the wall, is proposed. Unlike existing …
bounded turbulent flows to the incompressible law of the wall, is proposed. Unlike existing …
Direct numerical simulation of hypersonic turbulent boundary layers: effect of spatial evolution and Reynolds number
Direct numerical simulations (DNS) are performed to investigate the spatial evolution of flat-
plate zero-pressure-gradient turbulent boundary layers over long streamwise domains () …
plate zero-pressure-gradient turbulent boundary layers over long streamwise domains () …
Compressible velocity transformations for various noncanonical wall-bounded turbulent flows
T Bai, KP Griffin, L Fu - AIAA journal, 2022 - arc.aiaa.org
Although several velocity transformations for compressible zero-pressure-gradient boundary
layers have been proposed in the past decades, their performance for noncanonical …
layers have been proposed in the past decades, their performance for noncanonical …
Linear response analysis of supersonic turbulent channel flows with a large parameter space
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 …
forcing are investigated for supersonic channel flow. Well-established universal relations are …
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 …
compressible wall-bounded turbulence. In the present study, we employ a linear model, ie …
Near-wall model for compressible turbulent boundary layers based on an inverse velocity transformation
In this work, a near-wall model, which couples the inverse of a recently developed
compressible velocity transformation (Griffin et al., Proc. Natl Acad. Sci., vol. 118, 2021, p …
compressible velocity transformation (Griffin et al., Proc. Natl Acad. Sci., vol. 118, 2021, p …
Study of the linear models in estimating coherent velocity and temperature structures for compressible turbulent channel flows
Linear models, based on stochastically forced linearized equations, are deployed for
spectral linear stochastic estimation (SLSE) of the velocity and temperature fluctuations in …
spectral linear stochastic estimation (SLSE) of the velocity and temperature fluctuations in …
Momentum and heat flux events in compressible turbulent channel flows
C Cheng, W Shyy, L Fu - Physical Review Fluids, 2023 - APS
In the present study, the momentum and heat fluxes (MF and HF) in subsonic or supersonic
channel flows are studied and compared via resorting to the established analysis tools …
channel flows are studied and compared via resorting to the established analysis tools …
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 …
structures in subsonic and supersonic turbulence. To this end, a series of direct numerical …