Challenges and opportunities for low noise electric aircraft
A new class of electric aircraft is being developed to transport people and goods as a part of
the urban and regional transportation infrastructure. To gain public acceptance of these …
the urban and regional transportation infrastructure. To gain public acceptance of these …
Computational investigation of microscale coaxial-rotor aerodynamics in hover
MICRO air vehicles (MAVs), as defined in the research program of Defense Advanced
Research Projects Agency (DARPA), are cheap flying vehicles with no dimension exceeding …
Research Projects Agency (DARPA), are cheap flying vehicles with no dimension exceeding …
Application of vortex methods to coaxial rotor wake and load calculations in hover
The coaxial rotor has distinct advantages in hover performance and forward flight compared
to a conventional isolated rotor. The viscous vortex particle approach based on the …
to a conventional isolated rotor. The viscous vortex particle approach based on the …
[HTML][HTML] A high-resolution numerical investigation of unsteady wake vortices for coaxial rotors in hover
HAN Shaoqiang, S Wen**, HAN Zhonghua… - Chinese Journal of …, 2024 - Elsevier
High-resolution numerical simulations for wake vortical flows have long been a challenge in
rotor aerodynamics. A novel spectrum-optimized sixth-order Weighted Essentially Non …
rotor aerodynamics. A novel spectrum-optimized sixth-order Weighted Essentially Non …
High-fidelity aeromechanical analysis of coaxial mars helicopter
A high-fidelity coupled computational fluid dynamics and comprehensive analysis solver is
developed for helicopter flight on Mars. The objectives are accurate prediction of flight loads …
developed for helicopter flight on Mars. The objectives are accurate prediction of flight loads …
A study of coaxial rotor aerodynamic interaction mechanism in hover with high-efficient trim model
H Qi, G Xu, C Lu, Y Shi - Aerospace Science and Technology, 2019 - Elsevier
A numerical method based on Reynolds Averaged Navier–Stokes (RANS) equations and
moving overset mesh technique is developed to simulate the aerodynamics of Harrington …
moving overset mesh technique is developed to simulate the aerodynamics of Harrington …
Performance of a Mach-scale coaxial counter-rotating rotor in hover
A Mach-scale rotor system, 2.03 m in diameter, was built and hover tested in three
configurations: two-bladed single rotor, four-bladed single rotor, and two-bladed coaxial …
configurations: two-bladed single rotor, four-bladed single rotor, and two-bladed coaxial …
Three-Dimensional Aeromechanical Analysis of Lift Offset Coaxial Rotors: A Helios Test Case
Three-dimensional (3-D) solid finite element analysis (FEA) is used to model and study
coaxial helicopter rotors. The 3-D FEA is coupled with a lifting line aerodynamic model with …
coaxial helicopter rotors. The 3-D FEA is coupled with a lifting line aerodynamic model with …
[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, 2025 - 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 …
aerodynamically efficient multirotor design. Current research is conducted to analyze …
Aeromechanics of rigid coaxial rotor models for wind-tunnel testing
JH Schmaus, I Chopra - Journal of Aircraft, 2017 - arc.aiaa.org
A comprehensive analysis for evaluating performance and vibratory loads of a coaxial
helicopter rotor is developed and validated against existing experimental data. The model is …
helicopter rotor is developed and validated against existing experimental data. The model is …