Enhanced high-order scheme for high-resolution rotorcraft flowfield analysis

Y Hong, D Lee, K Yee, SH Park - AIAA Journal, 2022 - arc.aiaa.org
The recent growing interest in urban air mobility (UAM) worldwide has led to the demand for
physical analyses of the aerodynamic performance and aeroacoustic characteristics of …

Noise Prediction of a Distributed Propulsion System Using the Actuator Line Method

R Wickersheim, M Keßler, E Krämer - AIAA Journal, 2024 - arc.aiaa.org
Within this study, the capability of the actuator line method to simulate the noise of a high-lift
distributed propulsion system is investigated. Therefore, the blades of three tractor …

Aerodynamic interactions on airbus helicopters' compound helicopter RACER in cruise flight

F Frey, J Thiemeier, C Öhrle, M Keßler… - Journal of the …, 2020 - ingentaconnect.com
With the pursuit of extending the flight envelopes of helicopters toward higher cruise speed,
helicopter manufacturers increasingly have come up with nonconventional configurations in …

Comparative assessment of local accuracy of high-order spatial schemes for rotorcraft aeroacoustics

Y Hong, SH Park, K Yee - AIAA Journal, 2023 - arc.aiaa.org
High-order spatial schemes, which effectively treat the dissipative characteristics of
computational fluid dynamics solvers, are known to assure the precise prediction of rotorcraft …

Aerodynamic interactions on Airbus Helicopters' compound helicopter RACER in hover

F Frey, J Thiemeier, C Öhrle, M Keßler… - Journal of the …, 2022 - ingentaconnect.com
In recent years, helicopter manufacturers have developed an increasing number of
nonconventional configurations in order to extend flight envelopes of helicopters towards …

Effects of design parameters on coaxial rotorcraft with propellers on wing tips

B Im, S Park, T Chun, J Ryeom, SJ Shin - Journal of Aircraft, 2022 - arc.aiaa.org
RECENTLY, an additional thrust source or lifting device is used in a compound rotorcraft for
improving cruise performance and facilitating unique flight capabilities such as vertical …

Development of simulation tools for high fidelity analysis of compound rotorcraft

T Zhang, GN Barakos - AIAA Scitech 2020 Forum, 2020 - arc.aiaa.org
This paper presents the development and validation of a toolchain for high fidelity analysis
of compound rotorcraft. An automatic geometry composition and grid generation framework …

Experimental evaluation of the aerodynamic rotor/propeller interactions on high speed helicopters, efforts and velocity fields measurements

L Lefevre, V Nowinski, J Delva, A Dazin - VFS 78th Forum, 2022 - hal.science
This paper focuses on the experimental evaluation of the rotor/propeller interactions for
hybrid compound configurations. Experiments are conducted in the ONERA L2 large size …

The Influence of Rotor Overlap** Azimuth on Compound Coaxial Helicopter Performance Based on Unsteady CFD Simulation

L Li, C Zhou, M Chen, F Wang, A Xu - Applied Sciences, 2023 - mdpi.com
In this paper, a computational fluid dynamics simulation method is developed to study the
influence of the rotor overlap** azimuth on the aerodynamic performance of compound …

Improved neural network adaptive control for compound helicopter with uncertain cross-coupling in multimodal maneuver

F Zheng, B **ong, J Zhang, Z Zhen, F Wang - Nonlinear Dynamics, 2022 - Springer
The main goal of this study is to create a robust control system that could guide or replace
pilots in the tracking of the commanded velocity and attitude in multimodal maneuver, while …