Unconventional aircraft for civil aviation: A review of concepts and design methodologies

PD Bravo-Mosquera, FM Catalano, DW Zingg - Progress in Aerospace …, 2022 - Elsevier
In recent decades, the environmental impacts of aviation have become a key challenge for
the aeronautical community. Advanced and well-established technologies such as active …

Multi-fidelity optimization of a quiet propeller based on deep deterministic policy gradient and transfer learning

X Geng, P Liu, T Hu, Q Qu, J Dai, C Lyu, Y Ge… - Aerospace Science and …, 2023 - Elsevier
In a propeller blade optimization, both aerodynamic and aeroacoustic performance were
considered simultaneously. A multi-fidelity sampling scheme was adopted by Transfer …

Large eddy simulation of turbulent wake flow around a marine propeller under the influence of incident waves

K Kan, H Li, Z Yang - Physics of Fluids, 2023 - pubs.aip.org
In practical applications, propellers often operate beneath incident waves. To investigate the
effects of waves on turbulent propeller wakes, a comparative study of the instantaneous flow …

Generalized Energy-Based Flight Vehicle Sizing and Performance Analysis Methodology

I Chakraborty, AA Mishra - Journal of Aircraft, 2021 - arc.aiaa.org
Air vehicle sizing requires the ability to estimate the propulsive power and energy
requirements of a flight vehicle as well as its weight. Existing tools and methods for aircraft …

Tip leakage flow, tip aerodynamic loading and rotating instability in a subsonic high-speed axial flow compressor rotor

Z Chen, Y Wu, G An - Aerospace Science and Technology, 2021 - Elsevier
Rotating instability as an unsteady flow phenomenon is closely related to rotating stall in the
compressor. In this paper, dynamic pressure measurements and full-annular URANS …

Noise reduction of a counter rotating open rotor through a locked blade row

DA Smith, A Filippone, N Bojdo - Aerospace Science and Technology, 2020 - Elsevier
Abstract Counter Rotating Open Rotors (CROR) have the potential to significantly reduce
aircraft emissions. However, there are a number of concerns surrounding their noise levels …

Active control of counter-rotating open rotor interior noise in a Dornier 728 experimental aircraft

T Haase, O Unruh, S Algermissen, M Pohl - Journal of Sound and Vibration, 2016 - Elsevier
The fuel consumption of future civil aircraft needs to be reduced because of the CO 2
restrictions declared by the European Union. A consequent lightweight design and a new …

轴流状态对转螺旋桨气动性能高效预测方法

原昕, 招启军, 赵国庆 - 航空动力学报, 2024 - jasp.com.cn
提出了一套适用于共轴对转螺旋桨轴流状态的高效气动性能预测方法. 为消除大入流角状态下小
角度假设引入的误差, 应用了精确的气动力分解模型与Prandtl 桨尖损失函数; …

Aeroacoustic analysis of aerodynamically optimized joined-blade propeller for future electric aircraft at cruise and take-off

Z Huang, H Yao, O Sjögren, A Lundbladh… - Aerospace Science and …, 2020 - Elsevier
A novel propeller with the blade tips joined in pairs, named Boxprop, is designed and
optimized for a conceptual electric aircraft using an efficient optimization platform. According …

CFD analysis of contrarotating open rotor aerodynamic interactions

W Shi, J Li, Z Yang, H Zhang - International Journal of …, 2018 - Wiley Online Library
High efficiency and low fuel consumption make the contrarotating open rotor (CROR) system
a viable economic and environmentally friendly powerplant for future aircraft. While the …