Numerical study about aerodynamic interaction for coaxial rotor blades

SH Park, OJ Kwon - International Journal of Aeronautical and Space …, 2021 - Springer
In the present study, the interaction effect by inter-rotor spacing of coaxial rotor blades in
hovering and forward flight is studied by using a Reynolds-averaged Navier–Stokes CFD …

Investigation of lift offset on flight dynamics characteristics for coaxial compound helicopters

Y Yuan, D Thomson, R Chen - Journal of Aircraft, 2019 - arc.aiaa.org
Coaxial compound helicopters adopt the lift-offset (LOS) strategy to improve the rotor
performance in high-speed flight, which influences the flight dynamics characteristics of the …

Aerodynamics and aeroacoustic sources of a coaxial rotor

NL Schatzman - 2018 - ntrs.nasa.gov
Vehicles with coaxial, contra-rotating rotor systems (CACR) are being considered for a
range of applications. Design parameters are identified that effect the fundamental …

Numerical investigation of aerodynamic interactions for the coaxial rotor system in low-speed forward flight

X Yuan, W Bian, Q Zhao, G Zhao - Aerospace Science and Technology, 2024 - Elsevier
This study is conducted to investigate the aerodynamic characteristics of a coaxial rotor in
low-speed forward flight using a high-fidelity computational fluid dynamics (CFD) solver …

[HTML][HTML] Aerodynamic analysis of rotor-to-rotor interactions in different octocopter configurations

A Aqib, SHI Yongjie, Y Liu, XU Guohua - Chinese Journal of Aeronautics, 2024 - Elsevier
Rotor-to-rotor interaction among neighboring rotors of a multirotor has great significance for
aerodynamically efficient multirotor design. Current research is conducted to analyze …

Aeromechanics of Coaxial Rotor Helicopters using the Viscous Vortex Particle Method

P Singh - 2020 - deepblue.lib.umich.edu
Coaxial rotor helicopters are a candidate for the next generation of rotorcraft due to their
ability to achieve high speeds without compromising hover performance. Coaxial rotors are …

Multi-Fidelity Bayesian Optimization of a Coaxial Rotor for eVTOL Aircraft

RM Erhard, JJ Alonso - AIAA SCITECH 2024 Forum, 2024 - arc.aiaa.org
The importance of aerodynamic fidelity in capturing coaxial rotor performance in hover and
edgewise flight is considered. Low-and mid-fidelity aerodynamic methods based on …

Numerical investigation of aerodynamic interference on coaxial rotor

K Hayami, H Sugawara, Y Tanabe… - AIAA Scitech 2020 …, 2020 - arc.aiaa.org
High-fidelity simulations were performed to analyze the rotor vibration of coaxial rotors using
a rotorcraft CFD solver, rFlow3D, with emphasis on the effect of lift offset and advance ratio …

Experimental and numerical investigation of co-axial rotor interaction to thrust

A Soydan, H Sahin, B Biçer… - … Fluid Dynamics, an …, 2022 - inderscienceonline.com
The experimental and numerical computational investigation of co-axial rotor performance
has been increased over the past decade in order to understand complex interactions in co …

[HTML][HTML] Effects of Wake Separation on Aerodynamic Interference Between Rotors in Urban Low-Altitude UAV Formation Flight

C Liu, B Li, Z Wei, Z Zhang, Z Shan, Y Wang - Aerospace, 2024 - mdpi.com
In recent years, unmanned aerial vehicle (UAV) formation flight has become an effective
strategy for urban air mobility (UAM). However, close rotor separation during formation flight …