CFD simulations of tiltrotor configurations in hover

MA Potsdam, RC Strawn - Journal of the American Helicopter …, 2005 - ingentaconnect.com
Navier‐Stokes computational fluid dynamics calculations are presented for isolated, half‐
span, and full‐span V‐22 tiltrotor hover configurations. These computational results extend …

Computational aeroacoustics of quadcopter drones

T Dbouk, D Drikakis - Applied Acoustics, 2022 - Elsevier
Multicopter drones have a complex geometry involving several rotors. Therefore,
computational resources could hinder their aeroacoustics modelling and simulation …

Quadcopter drones swarm aeroacoustics

T Dbouk, D Drikakis - Physics of Fluids, 2021 - pubs.aip.org
Swarms of drones is an emerging field of research and technology. Multicopter drones are
noisy machines, and the noise effects would increase for a swarm. It is, therefore, essential …

倾转旋翼机流动机理及气动干扰特性试验

招启军, 倪同兵, 李鹏, 张航, 蒋霜, 王博, 林永峰 - 航空动力学报, 2018 - jasp.com.cn
采用试验方法测量了悬停和过渡状态倾转旋翼机旋翼/机翼气动干扰特性,
部分揭示了干扰流动的机理. 基于3D-PIV (particle image velocimetry) 技术的流场测量结果 …

Rotorcraft downwash flow field study to understand the aerodynamics of helicopter brownout

AJ Wadcock, LA Ewing, E Solis, M Potsdam… - … Technical Specialist''s …, 2008 - ntrs.nasa.gov
Rotorcraft brownout is caused by the entrainment of dust and sand particles in helicopter
downwash, resulting in reduced pilot visibility during low, slow flight and landing. Recently …

[HTML][HTML] CFD calculations on the unsteady aerodynamic characteristics of a tilt-rotor in a conversion mode

P Li, Q Zhao, Q Zhu - Chinese journal of aeronautics, 2015 - Elsevier
In order to calculate the unsteady aerodynamic characteristics of a tilt-rotor in a conversion
mode, a virtual blade model (VBM) and an real blade model (RBM) are established …

[HTML][HTML] 基于CFD 方法的倾转旋翼/螺旋桨气动优化分析

招启军, 蒋霜, 李鹏, 王博, 张航 - 空气动力学学报, 2017 - html.rhhz.net
针对倾转旋翼存在直升机和固定翼两种工作模式特点, 将CFD 方法与优化方法相结合,
建立了一套倾转旋翼/螺旋桨气动外形综合优化设计方法. 首先, 发展了一套适合桨叶气动外形 …

Development of Virtual Blade Model for Modelling Helicopter Rotor Downwash in OpenFOAM.

S Wahono - 2013 - apps.dtic.mil
This report documents the development of a computational model to simulate the complex
flow induced by helicopter rotors, using an open-source computational fluid dynamics CFD …

Analysis of rotor/airframe interaction in hover and near-hover flight conditions

TR Quackenbush, GR Whitehouse, MIK Yu - AIAA Scitech 2019 Forum, 2019 - arc.aiaa.org
For physically realistic rotor systems, integrated performance in hover and near-hover (low
speed or low wind) conditions depends critically on rotor/airframe interaction, specifically the …

Tilt rotor aeromechanics phenomena in low speed flight

MA Potsdam, MJ Silva - 2004 Users Group Conference …, 2004 - ieeexplore.ieee.org
This work investigates important aeromechanics phenomena affecting the V-22 tilt rotor in
low speed sideward flight or while hovering in quartering or crosswind conditions. These …