Aerodynamically induced noise of a lift-offset coaxial rotor with pitch attitude in high-speed forward flight
This paper investigates both acoustics and performance of a lift-offset coaxial rotor based on
a first-principles and high-fidelity CFD (Computational Fluid Dynamics) and CSD …
a first-principles and high-fidelity CFD (Computational Fluid Dynamics) and CSD …
Impulsive loading noise of a lift-offset coaxial rotor in high-speed forward flight
This study was conducted to investigate the impulsive acoustic characteristics of a lift-offset
coaxial rotor in high-speed forward flight, as well as the impact of wake-grid resolution and …
coaxial rotor in high-speed forward flight, as well as the impact of wake-grid resolution and …
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 …
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 …
low-speed forward flight using a high-fidelity computational fluid dynamics (CFD) solver …
Modeling Shed Vorticity from Coaxial Blade Interactions
NL Schatzman, EA Romander… - 2018 Fluid Dynamics …, 2018 - arc.aiaa.org
Vr/R= velocity at r/R spanwise location (m/s) Vtip= rotor blade rotational speed at tip (m/s)
V∞= forward flight velocity (m/s) α= airfoil angle-of-attack (deg), positive pitch up Γ= vortex …
V∞= forward flight velocity (m/s) α= airfoil angle-of-attack (deg), positive pitch up Γ= vortex …