|
|
|
|
|
Yucheng Yang, Guohua Xu, Yongjie Shi and Zhiyuan Hu
This study develops a hybrid solver with reversed overset assembly technology (ROAT), a viscous vortex particle method (VVPM), and a CFD program based on the URNS method, in order to study the aerodynamic and acoustic characteristics of coaxial rigid rot...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yu-Been Lee and Jae-Sang Park
Hover performance analyses of coaxial co-rotating rotors (or stacked rotors), which can be used as lifting rotors for electric VTOL (eVTOL) aircraft, are conducted here. In this study, the rotorcraft comprehensive analysis code, CAMRAD II, is used with t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiangkun Gong, Deren Li, Jun Yan, Huiping Hu and Deyong Kong
Current studies rarely mention radar detection of hybrid vertical take-off and landing (VTOL) fixed-wing drones. We investigated radar signals of an industry-tier VTOL fixed-wing drone, TX25A, compared with the radar detection results of a quad-rotor dro...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yuanxing Dai, Zhenghao Liu, Wei Zhang, Jianping Chen and Jianguo Liu
This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid?structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid?str...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ning Li, Li Li, Yongqian Liu, Yulu Wu, Hang Meng, Jie Yan and Shuang Han
The actuator disc model (ADM) incorporated into the k-e turbulence model of EI Kasmi is able to simulate the wind farm wakes with high fidelity, which is essential for layout optimization and the evaluation of power production in modern wind farms. Howev...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fuzheng Li, Qiaogao Huang, Guang Pan, Denghui Qin and Han Li
In order to improve the hydrodynamic performance of pump-jet propulsion (PJP) when matching stator with the rotor, the RANS method with SST k-? turbulence model is employed to study the influence of six kinds of stator parameters, which are classified in...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yao Lei, Jiading Wang and Wenjie Yang
Micro aerial vehicles (MAVs) usually suffer from several challenges, not least of which are unsatisfactory hover efficiency and limited fly time. This paper discusses the aerodynamic characteristics of a novel Hex-rotor MAV with a coaxial rotor capable o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hua Zhu, Dechao Li, Henglin Pu, Limin Wang, Yang He, Yufan Bu and Defu Che
An inherent defect of the operating rotary air preheaters (RAPH) is known as leakage, which seriously hinders the efficient and safe operation of RAPH. It is significant for the estimation of the direct leakage to determine the effects of different struc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dhwanil Shukla and Narayanan Komerath
Aerodynamic interactions between rotors are important factors affecting the performance of in-plane multirotor Unmanned Air Vehicles (UAVs) or drones, which are the majority of small size UAVs (or mini-drones). Optimal design requires knowledge of the fl...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fabian Bleier, Corina Schwitzke and Hans-Jörg Bauer
The paper presents the setup and analysis of an experimental study on heat transfer of a jet cooled compressor rear cone with adjacent conical housing. The main goal of the paper is to describe the systematic derivation of empirical correlations for glob...
ver más
|
|
|
|
|
|