[HTML][HTML] Grid-point and time-step requirements for direct numerical simulation and large-eddy simulation

XIA Yang, KP Griffin - Physics of Fluids, 2021 - pubs.aip.org
We revisit the grid-point requirement estimates in Choi and Moin [“Grid-point requirements
for large eddy simulation: Chapman's estimates revisited,” Phys. Fluids 24, 011702 (2012)] …

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 …

An immersed boundary method for wall-modeled large-eddy simulation of turbulent high-Mach-number flows

W van Noordt, S Ganju, C Brehm - Journal of Computational Physics, 2022 - Elsevier
The excessive computational resource requirements for direct numerical simulation (DNS)
and wall-resolved large eddy simulation (LES) make these methods intractable for …

Survey of machine-learning wall models for large-eddy simulation

A Vadrot, XIA Yang, M Abkar - Physical Review Fluids, 2023 - APS
This survey investigates wall modeling in large-eddy simulations (LES) using data-driven
machine-learning (ML) techniques. To this end, we implement three ML wall models in an …

Near-wall model for compressible turbulent boundary layers based on an inverse velocity transformation

KP Griffin, L Fu, P Moin - Journal of Fluid Mechanics, 2023 - cambridge.org
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 …

Wall-modeled LES of shock-wave/boundary layer interaction

F De Vanna, M Bernardini, F Picano, E Benini - International Journal of …, 2022 - Elsevier
The present paper discusses the physical reliability of turbulence modeling in an adverse
pressure gradient wall flow setup at moderate/high Reynolds number by comparing wall …

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 …

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 …

An improved Baldwin–Lomax algebraic wall model for high-speed canonical turbulent boundary layers using established scalings

X Chen, J Gan, L Fu - Journal of Fluid Mechanics, 2024 - cambridge.org
In this work, we employ well-established relations for compressible turbulent mean flows,
including the velocity transformation and algebraic temperature–velocity (TV) relation, to …

[HTML][HTML] On the coupling between wall-modeled LES and immersed boundary method towards applicative compressible flow simulations

F De Vanna, G Baldan, F Picano, E Benini - Computers & Fluids, 2023 - Elsevier
The current work presents an innovative numerical technique for high-Reynolds/high-Mach
number compressible flow simulations in complex configurations. In particular, the research …