Applying Bayesian optimization with Gaussian process regression to computational fluid dynamics problems

Y Morita, S Rezaeiravesh, N Tabatabaei… - Journal of …, 2022 - Elsevier
Bayesian optimization (BO) based on Gaussian process regression (GPR) is applied to
different CFD (computational fluid dynamics) problems which can be of practical relevance …

About the influences of compressibility, heat transfer and pressure gradients in compressible turbulent boundary layers

C Wenzel, T Gibis, M Kloker - Journal of Fluid Mechanics, 2022 - cambridge.org
This paper presents a comprehensive analysis of the momentum and energy transfer in
compressible turbulent boundary layers based on integral identities. By considering data …

Wall shear stress and wall heat flux in a supersonic turbulent boundary layer

F Tong, S Dong, J Lai, X Yuan, X Li - physics of fluids, 2022 - pubs.aip.org
We report the characteristics of wall shear stress (WSS) and wall heat flux (WHF) from direct
numerical simulation (DNS) of a spatially develo** zero-pressure-gradient supersonic …

Hypersonic turbulent boundary layer over the windward side of a lifting body

S Dong, M Yu, F Tong, Q Wang, X Yuan - Journal of Fluid Mechanics, 2024 - cambridge.org
In the present study, we performed direct numerical simulations for a hypersonic turbulent
boundary layer over the windward side of a lifting body, the HyTRV model, at Mach number …

On the enhancement of boundary layer skin friction by turbulence: an angular momentum approach

A Elnahhas, PL Johnson - Journal of Fluid Mechanics, 2022 - cambridge.org
Turbulence enhances the wall shear stress in boundary layers, significantly increasing the
drag on streamlined bodies. Other flow features such as free stream pressure gradients and …

Wall-pressure fluctuations in an axisymmetric boundary layer under strong adverse pressure gradient

NA Balantrapu, WN Alexander… - Journal of Fluid …, 2023 - cambridge.org
Measurements of fluctuating wall pressure in a high-Reynolds-number flow over a body of
revolution are described. With a strong axial pressure gradient and moderate lateral …

Skin-friction drag reduction by local porous uniform blowing in spatially develo** compressible turbulent boundary layers

R Ma, Z Gao, L Lu, S Chen - Physics of Fluids, 2022 - pubs.aip.org
This paper investigates the effects of local porous uniform blowing on the skin-friction drag
reduction in the spatially develo** compressible turbulent boundary layers through direct …

[HTML][HTML] Hypersonic shock wave and turbulent boundary layer interaction in a sharp cone/flare model

T Fulin, D Junyi, LAI Jiang, SUN Dong… - Chinese Journal of …, 2023 - Elsevier
A direct numerical simulation of hypersonic Shock wave and Turbulent Boundary Layer
Interaction (STBLI) at Mach 6.0 on a sharp 7° half-angle circular cone/flare configuration at …

Decomposition of the mean friction drag on an NACA4412 airfoil under uniform blowing/suction

Y Fan, M Atzori, R Vinuesa, D Gatti… - Journal of Fluid …, 2022 - cambridge.org
The application of drag-control strategies on canonical wall-bounded turbulence, such as
periodic channel and zero-or adverse-pressure-gradient boundary layers, raises the …

[HTML][HTML] A new perspective on skin-friction contributions in adverse-pressure-gradient turbulent boundary layers

M Atzori, F Mallor, R Pozuelo, K Fukagata… - International Journal of …, 2023 - Elsevier
For adverse-pressure-gradient turbulent boundary layers, the study of integral skin-friction
contributions still poses significant challenges. Beyond questions related to the integration …