Flow structures in transitional and turbulent boundary layers

C Lee, X Jiang - Physics of Fluids, 2019 - pubs.aip.org
The basic problems of transition in both incompressible and compressible boundary layers
are reviewed. Flow structures in low-speed transitional and developed turbulent boundary …

基于深度神经网络的横流转捩预测

胡震宇, 王子路, 陈坚强, 袁先旭, 向星皓 - 力学学报, 2023 - lxxb.cstam.org.cn
基于深度神经网络DNN 构建了从层流流场无量纲速度梯度, 流向涡强度等物理量到横流转捩模
态下间歇因子间的映射关系, 获得一种新的数据驱动转捩模型. 通过将数据驱动转捩模型与SST k …

[HTML][HTML] 横流转捩模型研究进展

向星皓, 张毅锋, 陈坚强, 袁先旭, 何琨 - 空气动力学学报, 2018 - html.rhhz.net
本文对横流转捩模型的研究进展进行了整理与回顾. 首先分类归纳了目前常用的多种边界层横流
不稳定诱导转捩判据, 详细分析其构建思路和判据特性, 并介绍判据相关研究工作 …

Prediction of crossflow transition based on deep neural networks

H Zhenyu, W Zilu, C Jianqiang, Y Xianxu… - Chinese Journal of …, 2023 - lxxb.cstam.org.cn
This study based on deep neural networks (DNN), produces a mapping from the physical
quantities such as dimensionless velocity gradient and streamwise vorticity of laminar flow …

Research on the influence of spanwise cross-flow on the boundary layer transition of compressor cascade

X Li, Q Zheng, Z Chi, S Wang, Z Zhou, B Jiang - Physics of Fluids, 2024 - pubs.aip.org
The cross-flow perpendicular to the inviscid main flow in the boundary layer has potential
instability, causing the transition from laminar flow to turbulent flow. In order to explore the …

Numerical study of transition process in different zones of a compressor cascade channel

X Li, Q Zheng, H Li, W Yan, B Jiang - … Journal of Turbo & Jet-Engines, 2024 - degruyter.com
The complex vortex structure compressor leads to the problem that the transition model is
insufficient in predicting the flow instability of the compressor. In this paper, the rectangular …

Prediction of multi-mode hypersonic boundary layer transition based on C-γ-Reθmodel

HU Zhenyu, X Fengshou, C Jianqiang… - Acta Aeronautica et …, 2024 - sciopen.com
Standard models such as HIFiRE-5 and HyTRV are used in the validation of hypersonic
three-dimensional boundary layer transition. Hypersonic crossflow transition correction is …