Improved amplification factor transport transition model for transonic boundary layers

Y Wang, J Xu, L Qiao, Y Zhang, J Bai - AIAA Journal, 2023 - arc.aiaa.org
Linear-stability-theory-based e N method plays an important role in boundary-layer
transition prediction of aeronautical flows. Based on the simplification of linear stability …

[HTML][HTML] 基于当地变量的横流转捩预测模式研究进展

徐家宽, 段毅, 杨家盛, 乔磊, 刘建新, 白俊强 - 气体物理, 2023 - pubs.cstam.org.cn
边界层转捩预测一直是流体力学领域的研究热点和难点. 其中, 横流转捩是飞行器表面转捩现象
中关键的一种. 由于受到来流扰动, 壁面粗糙度, 壁面压力梯度, 当地后掠角, 横流特征Reynolds …

Local correlation-based transition model for high-speed flows

Z Liu, Y Lu, J Li, C Yan - AIAA Journal, 2022 - arc.aiaa.org
A local correlation-based transition model is developed for high-speed transitional flows.
Through an analysis of self-similar solutions for compressible boundary layers, a new …

[HTML][HTML] Improved local amplification factor transport equation for stationary crossflow instability in subsonic and transonic flows

XU Jiakuan, Q Lei, BAI Junqiang - Chinese Journal of Aeronautics, 2020 - Elsevier
Transition prediction is a hot research topic of fluid mechanics. For subsonic and transonic
aerodynamic flows, e N method based on Linear Stability Theory (LST) is usually adopted …

Modeling of surface roughness effects on bypass and laminar separation bubble-induced transition for turbomachinery flows

Y Zhang, J Xu, Y Li, L Qiao, J Bai - Physics of Fluids, 2022 - pubs.aip.org
In a previous study, we developed a one-equation transition model for the bypass and
laminar separation bubble (LSB)-induced transition based on local variables. In this paper …

Fully local transition closure model for hypersonic boundary layers considering crossflow effects

L Qiao, J Xu, J Bai, Y Zhang - AIAA Journal, 2021 - arc.aiaa.org
A computational fluid dynamics (CFD) compatible and fully local transition closure model is
proposed for three-dimensional hypersonic boundary layers considering crossflow effects …

A modification of production term for the shear stress transport turbulence model based on a new wall-law for adverse pressure gradient

Z Shao, Y Li, H Song, M Ma, C Yan - Physics of Fluids, 2024 - pubs.aip.org
This paper presents an attempt to improve the predictive accuracy of the Menter shear stress
transport (SST) turbulence model for adverse pressure gradient (APG) flows. The foundation …

[HTML][HTML] Amplification factor transport transition model for high-speed flows

Z Liu, Y Lu, C Yan - Computers & Fluids, 2023 - Elsevier
A fully local amplification factor transport model is developed for high-speed transitional
flows. On the basis of the approximate e N envelope method of linear stability theory, two …

Parallel compatible transition closure model for high-speed transitional flow

J Xu, J Bai, Z Fu, L Qiao, Y Zhang, J Xu - AIAA Journal, 2017 - arc.aiaa.org
A single-point transition closure model that incorporates analytical results by stability theory
in a reasonably wide range of Mach numbers has been formulated for …

[HTML][HTML] Distributed roughness induced transition on wind-turbine airfoils simulated by four-equation k-ω-γ-Ar transition model

M Yang, Z Xiao - Renewable energy, 2019 - Elsevier
The fourth transport equation for “roughness amplification” factor A r, which depends on
equivalent sand grain roughness height ks, has been combined with the original three …