Modal analysis of fluid flows: Applications and outlook
THE field of fluid mechanics involves a range of rich and vibrant problems with complex
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …
Machine learning-based optimization of a pitching airfoil performance in dynamic stall conditions using a suction controller
Flow separation control on oscillating airfoils is crucial for enhancing the efficiency of turbine
blades. In this study, a genetic algorithm was employed to optimize the configuration of a …
blades. In this study, a genetic algorithm was employed to optimize the configuration of a …
Optimization of blowing jet performance on wind turbine airfoil under dynamic stall conditions using active machine learning and computational intelligence
The dynamic stall is a common phenomenon in horizontal and vertical axis wind, reducing
system efficiency. In order to enhance the aerodynamic performance (L/D) of a NACA0012 …
system efficiency. In order to enhance the aerodynamic performance (L/D) of a NACA0012 …
[HTML][HTML] 旋翼翼型动态失速机理及非定常设计研究进展
招启军， 井思梦， 赵国庆， 王清 - 空气动力学学报, 2021 - html.rhhz.net
旋翼翼型的动态失速现象限制了直升机的最大飞行速度和机动性, 并且其产生机理复杂,
抑制困难, 是直升机空气动力学领域持续关注的重点与难点问题. 本文首先介绍了试验 …
抑制困难, 是直升机空气动力学领域持续关注的重点与难点问题. 本文首先介绍了试验 …
Effects of the Reynolds number and reduced frequency on the aerodynamic performance and dynamic stall behaviors of a vertical axis wind turbine
C Zhu, H Yang, Y Qiu, G Zhou, L Wang, Y Feng… - Energy Conversion and …, 2023 - Elsevier
Dynamic stall is the main reason for the low power efficiency of vertical axis wind turbines
(VAWTs) at low tip speed ratios, where the utilizable wind kinetic energy is also high …
(VAWTs) at low tip speed ratios, where the utilizable wind kinetic energy is also high …
On computational simulations of dynamic stall and its three-dimensional nature
In this paper, we investigate the three-dimensional nature of dynamic stall. Conducting the
investigation, the flow around a harmonically pitching National Advisory Committee for …
investigation, the flow around a harmonically pitching National Advisory Committee for …
Modeling the interplay between the shear layer and leading edge suction during dynamic stall
J Deparday, K Mulleners - Physics of Fluids, 2019 - pubs.aip.org
The dynamic stall development on a pitching airfoil at Re= 10 6 was investigated by time-
resolved surface pressure and velocity field measurements. Two stages were identified in …
resolved surface pressure and velocity field measurements. Two stages were identified in …
Leading-edge vortex dynamics on plunging airfoils and wings
The vortex dynamics of leading-edge vortices on plunging high-aspect-ratio (AR= 10) wings
and airfoils were investigated by means of volumetric velocity measurements, numerical …
and airfoils were investigated by means of volumetric velocity measurements, numerical …
Coupled particle and mesh method in an Euler frame for unsteady flows around the pitching airfoil
C Huang, L Zhao, JP Niu, JJ Di, JJ Yuan… - … Analysis with Boundary …, 2022 - Elsevier
Finite difference method (FDM) is a grid-based method which is convenient for implementing
multiple resolutions and has high computational efficiency. Smoothed particle …
multiple resolutions and has high computational efficiency. Smoothed particle …
Study on two-rotor interaction of counter-rotating horizontal axis tidal turbine
A counter-rotating tidal turbine can balance the axial torque and accelerate the wake
recovery, leading to a more conducive array layout. This paper aims to investigate the …
recovery, leading to a more conducive array layout. This paper aims to investigate the …