Results 1 to 10 of about 9,635,542 (232)

Numerical and Experimental Investigations on the Aerodynamic Characteristic of Three Typical Passenger Vehicles

Journal of Applied Fluid Mechanics, 2014
The numerical simulation and wind tunnel experiment were employed to investigate the aerodynamic characteristics of three typical rear shapes: fastback, notchback and squareback. The object was to investigate the sensibility of aerodynamic characteristic
yiping wang, Zhengqi Gu, Shi Wang, Yadong Deng, Xue Yang   +4 more
doaj   +2 more sources

Galloping Stability and Aerodynamic Characteristic of Iced Transmission Line Based on 3-DOF

Shock and Vibration, 2020
A new calculation method of critical wind speed based on three degrees of freedom (3-DOF) is proposed for galloping problem of iced transmission line.
Xiaohui Liu, Ming Zou, Chuan Wu, Bo Yan, Mengqi Cai   +4 more
doaj   +2 more sources

Research on the aerodynamic characteristics of eVTOL aircraft ducted rotor tip embedded inside the ducted body [PDF]

Scientific Reports
The lift system constitutes a pivotal technology in the makeup of vertical takeoff and landing aircraft systems. The application of ducted rotors in urban air mobility(UAM) has advantages and is one of the future development trends.
Siliang Du, Yi Zha, Chong Li, Zhiming Lu, Qijun Zhao   +4 more
doaj   +2 more sources

Impact of the gap distance between two adjacent external windshields of a high-speed train on surrounding flow characteristics: an IDDES study

Engineering Applications of Computational Fluid Mechanics, 2022
The external windshield is a key component in high-speed trains for drag reduction. However, the installation gap between external windshields, which is intended for improving curve-passing ability, could lead to strong aerodynamic instability in train ...
Fan Cheng, Xiao-Hui Xiong, Ming-Zan Tang, Xiao-Bai Li, Xin-Ran Wang   +4 more
doaj   +1 more source

Computational Aerodynamics Study of Competing Conceptual Designs for Advanced Tactical Fighter Aircraft [PDF]

Journal of Aerospace Technology and Management, 2021
Advanced tactical fighter (ATF) configurations are bound to perform high angle of attack (AoA) maneuvers. However, existing conceptual design tools available in aerospace industry are based on empirical or potential flows that cannot predict aerodynamic ...
Waseeq Siddiqui, Hassan Naseer, Syed Mohsin Zahid, Adnan Maqsood, Shuaib Salamat, Rizwan Riaz   +5 more
doaj   +2 more sources

Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping

Biomimetics, 2023
Hummingbirds are flapping winged creatures with unique flight mechanisms. Their flight pattern is more similar to insects than other birds. Because their flight pattern provides a large lift force at a very small scale, hummingbirds can remain hovering ...
Yilong Min, Gengyao Zhao, Dingyi Pan, Xueming Shao   +3 more
doaj   +1 more source

X-33 Hypersonic Aerodynamic Characteristics [PDF]

Journal of Spacecraft and Rockets, 1999
Lockheed Martin Skunk works, under a cooperative agreement with NASA, will build and fly the X-33, a half-scale prototype of a rocket-based, single-stage-to-orbit (SSTO), reusable launch vehicle (RLV). A 0.007-scale model of the X-33 604B0002G configuration was tested in four hypersonic facilities at the NASA Langley Research Center to examine vehicle ...
Kelly Murphy, Robert Nowak, Richard Thompson, Brian Hollis, Ramadas Prabhu   +4 more
openaire   +1 more source

Numerical Simulation of Aerodynamic Characteristics of Electric Vehicles with Battery Packs Mounted on Chassis

World Electric Vehicle Journal, 2023
Aerodynamic characteristics are of great significance to the fuel economy and handling the stability of electric vehicles. The battery pack of electric vehicles has a huge structure and is usually arranged in the chassis area of the vehicle, which ...
Yaoji Deng, Keyu Lu, Tao Liu, Xufei Wang, Hui Shen, Junjie Gong   +5 more
doaj   +1 more source

Aerodynamic multi-objective optimization on train nose shape using feedforward neural network and sample expansion strategy

Engineering Applications of Computational Fluid Mechanics, 2023
Feedforward neural network (FNN) models with strong learning ability and prediction accuracy are crucial for optimization. This paper investigates the effects of the number of training samples and the hidden layers on the accuracy of the FNN model ...
Zhiyuan Dai, Tian Li, Ze-Rui Xiang, Weihua Zhang, Jiye Zhang   +4 more
doaj   +1 more source

Parametric Research and Aerodynamic Characteristic of a Two-Stage Transonic Compressor for a Turbine Based Combined Cycle Engine

Aerospace, 2022
This paper researches the parametric optimization of a two-stage transonic compressor having a large air bypass at partial rotating speed according to flow analysis for a turbine-based combined cycle engine (TBCC).
Hengtao Shi
doaj   +1 more source