Predictive large-eddy-simulation wall modeling via physics-informed neural networks
While data-based approaches were found to be useful for subgrid scale (SGS) modeling in
Reynolds-averaged Navier-Stokes (RANS) simulations, there have not been many attempts …
Reynolds-averaged Navier-Stokes (RANS) simulations, there have not been many attempts …
Shock-induced heating and transition to turbulence in a hypersonic boundary layer
The interaction between an incident shock wave and a Mach-6 undisturbed hypersonic
laminar boundary layer over a cold wall is addressed using direct numerical simulations …
laminar boundary layer over a cold wall is addressed using direct numerical simulations …
A two-dimensional Jensen model with a Gaussian-shaped velocity deficit
M Ge, Y Wu, Y Liu, XIA Yang - Renewable Energy, 2019 - Elsevier
Abstract The one-dimensional (1D) Jensen model is probably the most often used model for
engineering analysis of wind turbine wakes. Identifying a more realistic shape function for …
engineering analysis of wind turbine wakes. Identifying a more realistic shape function for …
Velocity and temperature scalings leading to compressible laws of the wall
PG Huang, GN Coleman, PR Spalart… - Journal of Fluid …, 2023 - cambridge.org
We exploit the similarity between the mean momentum equation and the mean energy
equation and derive transformations for mean temperature profiles in compressible wall …
equation and derive transformations for mean temperature profiles in compressible wall …
Wall-modeled large-eddy simulations of spanwise rotating turbulent channels—Comparing a physics-based approach and a data-based approach
We develop wall modeling capabilities for large-eddy simulations (LESs) of channel flow
subjected to spanwise rotation. The developed models are used for flows at various …
subjected to spanwise rotation. The developed models are used for flows at various …
Assessment of heat transfer and Mach number effects on high-speed turbulent boundary layers
High-speed vehicles experience a highly challenging environment in which the freestream
Mach number and surface temperature greatly influence aerodynamic drag and heat …
Mach number and surface temperature greatly influence aerodynamic drag and heat …
Analysis of the equilibrium wall model for high-speed turbulent flows
PS Iyer, MR Malik - Physical Review Fluids, 2019 - APS
We perform a priori and a posteriori analyses of the equilibrium wall model for high-speed
wall-bounded turbulent flows. The time-averaged flow from various direct numerical …
wall-bounded turbulent flows. The time-averaged flow from various direct numerical …
A semi-locally scaled eddy viscosity formulation for LES wall models and flows at high speeds
We show that the mean wall-shear stresses in wall-modeled large-eddy simulations
(WMLES) of high-speed flows can be off by up to ≈ 100\%≈ 100% with respect to a DNS …
(WMLES) of high-speed flows can be off by up to ≈ 100\%≈ 100% with respect to a DNS …
Prediction of aerothermal characteristics of a generic hypersonic inlet flow
Accurate prediction of aerothermal surface loading is of paramount importance for the
design of high-speed flight vehicles. In this work, we consider the numerical solution of …
design of high-speed flight vehicles. In this work, we consider the numerical solution of …
Structure of wall-bounded flows at transcritical conditions
At transcritical conditions, the transition of a fluid from a liquidlike state to a gaslike state
occurs continuously, which is associated with significant changes in fluid properties …
occurs continuously, which is associated with significant changes in fluid properties …