Numerical simulation of flow characteristics behind the aerodynamic performances on an airfoil with leading edge protuberances

M Zhao, M Zhang, J Xu - Engineering Applications of …, 2017 - Taylor & Francis
This article presents a numerical investigation of the effects of leading-edge protuberances
on airfoil stall and post-stall performance. An improved delayed detached eddy simulation …

A grid-adaptive simulation model for turbulent flow predictions

G Wang, Y Liu - Physics of Fluids, 2022 - pubs.aip.org
Hybrid Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES)
methods, abbreviated as hybrid RANS-LES, have been rapidly developed and increasingly …

Design and performance of a small-scale aeroacoustic wind tunnel

P Liu, Y Xing, H Guo, L Li - Applied Acoustics, 2017 - Elsevier
The D5 aeroacoustic wind tunnel at Beihang University is a newly commissioned small-
scale closed-circuit wind tunnel with low turbulence intensity and low background noise. The …

Improved-delayed-detached-eddy simulation of cavity-induced transition in hypersonic boundary layer

L Xiao, Z Xiao, Z Duan, S Fu - International Journal of Heat and Fluid Flow, 2015 - Elsevier
Hypersonic flow transition from laminar to turbulent due to the surface irregularities, like local
cavities, can greatly affect the surface heating and skin friction. In this work, the hypersonic …

A dynamic version of the improved delayed detached-eddy simulation based on the differential Reynolds-stress model

Q Li, X Chen, G Wang, Y Liu - Physics of Fluids, 2022 - pubs.aip.org
A dynamic version of the improved delayed detached-eddy simulation (IDDES) based on the
differential Reynolds-stress model (RSM), referred to as the RSM-DynIDDES, is developed …

Numerical analysis of transonic buffet flow around a hammerhead payload fairing

Y Liu, G Wang, H Zhu, Z Ye - Aerospace Science and Technology, 2019 - Elsevier
During ascent of launcher, the unsteady aerodynamic loads associated with transonic buffet
flow have become of considerable concern. To study the unsteady dynamics of buffet flow …

[HTML][HTML] 宽速域RANS-LES 混合方法的发展及应用

肖志祥, 罗堃宇, 刘健 - 2017 - html.rhhz.net
传统的雷诺平均方法(RANS) 已经不能满足大范围分离, 激波振荡, 压力脉动,
动载荷等极端工况下的流动预测需求; 大涡模拟(LES), 直接数值模拟(DNS) 等方法资源耗费多 …

Wind-tunnel and CFD investigations of UAV landing gears and turrets–Improvements in empirical drag estimation

F Götten, M Havermann, C Braun, M Marino… - Aerospace Science and …, 2020 - Elsevier
This paper analyzes the drag characteristics of several landing gear and turret
configurations that are representative of unmanned aircraft tricycle landing gears and sensor …

Dynamic response of vortex breakdown flows to a pitching double-delta wing

J Liu, K Luo, H Sun, Y Huang, Z Liu, Z Xiao - Aerospace Science and …, 2018 - Elsevier
A finite volume-based solver with rigid moving mesh and delayed detached eddy simulation
(DDES) techniques is implemented to investigate the unsteady flows around an 80°/65° …

Low-frequency oscillation over NACA0015 airfoil near stall at high Reynolds number

J Liu, Z Xiao - AIAA Journal, 2020 - arc.aiaa.org
The unsteady flows past a NACA0015 airfoil near stall at a high Reynolds number are
investigated numerically using the delayed detached-eddy simulation with adaptive …