Drone scale coaxial rotor aerodynamic interactions investigation

D Shukla, N Komerath - Journal of Fluids …, 2019 - asmedigitalcollection.asme.org
Coaxial rotor uninhabited aerial vehicles (UAVs) are compact compared to single rotor
UAVs of comparable capacity. At the low Reynolds numbers (Re) where they operate, the …

共轴刚性旋翼悬停状态桨叶表面压力测量试验与计算研究

江露生, 曹亚雄, 刘婷, 樊枫 - 北京航空航天大学学报, 2021 - bhxb.buaa.edu.cn
针对共轴刚性模型旋翼悬停状态, 开展了桨叶表面压力测量试验与数值模拟研究.
试验采用微型压力传感器进行桨叶表面压力测量, 不仅获得了桨叶表面压力的试验数据 …

Multi-objective aerodynamic optimization design of variable camber leading and trailing edge of airfoil

N Bao, Y Peng, H Feng, C Yang - Proceedings of the …, 2022 - journals.sagepub.com
Variable camber is an effective method for improving the flight efficiency of large aircraft, and
has attracted the attention of researchers. This work focused on the optimization of a …

Rotor Performance Predictions for Urban Air Mobility: Single vs. Coaxial Rigid Rotors

J Cornelius, S Schmitz, J Palacios, B Juliano, R Heisler - Aerospace, 2024 - mdpi.com
This work details the development and validation of a methodology for high-resolution rotor
models used in hybrid Blade Element Momentum Theory Unsteady Reynolds Averaged …

[PDF][PDF] Dragonfly-Aerodynamics during transition to powered flight

J Cornelius, T Opazo, S Schmitz… - … Flight Society's 77th …, 2021 - rotorcraft.arc.nasa.gov
The Dragonfly lander will enter the Titan atmosphere following an approximate 7–10-year
journey through space inside its aeroshell. After atmospheric entry, deployment of the main …

Geometry Design of Coaxial Rigid Rotor in High‐Speed Forward Flight

B Wang, X Yuan, Q Zhao, Z Zhu - International Journal of …, 2020 - Wiley Online Library
The aerodynamic performance analysis and blade planform design of a coaxial rigid rotor in
forward flight were carried out utilizing CFD solver CLORNS. Firstly, the forward flow field …

[PDF][PDF] Rotor Performance Predictions for UAM—Single vs Coaxial Rigid Rotors

J Cornelius, S Schmitz - VFS Aeromechanics for Advanced …, 2022 - rotorcraft.arc.nasa.gov
The recent increased interest in advanced air mobility (AAM), specifically within urban air
mobility (UAM) and electric vertical take-off and landing (eVTOL) applications, has created a …

Coaxial Rotor CFD Validation and ML Surrogate Model Generation

J Cornelius, S Schmitz - 2024 Transformative Vertical Flight, 2024 - ntrs.nasa.gov
A fixed-pitch speed-controlled coaxial rotor system was tested in the NASA Langley
Transonic Dynamics Tunnel in September 2022. The rotors have a diameter of 1.35 meters …

Experimental and computational study on blade surface pressure measurement of coaxial rigid rotor in hovering state

L JIANG, Y CAO, T LIU, F FAN - 北京航空航天大学学报, 2021 - bhxb.buaa.edu.cn
For the coaxial rigid model rotor in hovering state, the experimental and numerical
simulation research on blade surface pressure measurement were carried out. The micro …

Characteristics of helicopter engine exhaust through scaled experiments using stereoscopic particle image velocimetry

Z Wei Teo, W Hou Wong, Z Wen Lee… - Proceedings of the …, 2021 - journals.sagepub.com
Helicopter engines are often mounted atop the fuselage to keep the aircraft footprint small
and optimal for operations. As a result, hot gases produced by the engines may …