Results 1 to 10 of about 3,449,531 (124)

Study on Aerodynamic Interference of Tanker Aircraft on Receiver Aircraft based on N-S Equations

open access: yesHangkong gongcheng jinzhan, 2022
The wake flow field of tanker aircraft can produce the complex flow interference on receiver aircraft during aerial refueling.The computational fluid dynamics(CFD)method based on Navier-Stokes(N-S)equations is used to analyze the wake flow field of the ...
GENG Yansheng   +3 more
doaj   +1 more source

Research on flight load surrogate model using neural networks

open access: yesHangkong gongcheng jinzhan, 2023
In aircraft structural strength design, flight load analysis is required, but the load analysis cycle is long,so it is necessary to study more efficient and accurate flight load analysis methods to shorten the load design cycle.The horizontal tail of a ...
PENG Yuzhuo, TANG Zhen, XIAO Qizhi
doaj   +1 more source

Analysis of Development Trend and Design Technology of Hard Type Air Tanker

open access: yesHangkong gongcheng jinzhan, 2020
Air refueling technology reflects the strength of a country's air force to a certain extent, and has been widely concerned. The development history of hard type air tanker is summarized in this paper.
WANG Xiuxiang, GAO Xu, GAO Yakui
doaj   +1 more source

Numerical Simulations Study on the Effect of Propeller Slipstream on Inlet Flow Field for a Turboprop Aircraft

open access: yesHangkong gongcheng jinzhan, 2020
The accelerating effect, viscous effect, and rotating effect of the propeller slipstream are of significant influences on the performance of the inlet.
WANG Limin, ZHANG Yanjun
doaj   +1 more source

Equivariant configuration spaces [PDF]

open access: yes, 2000
The compression theorem is used to prove results for equivariant configuration spaces that are analogous to the well-known non-equivariant results of May, Milgram and ...
Rourke, C. P., Sanderson, B. J.
core   +1 more source

Aerodynamic Design of a High Efficient Solar Powered UAV Propeller

open access: yesHangkong gongcheng jinzhan, 2020
High altitude long endurance(HALE) solar powered unmanned aerial vehicle is of the design characteristics of low Renolds(Re) number which makes a great challenge to the propeller aerodynamic design.
LI Xinghui, LI Quan, ZHANG Jian
doaj   +1 more source

Analysis on Stealth Requirement of Next-generation Bomber in the Future

open access: yesHangkong gongcheng jinzhan, 2018
The long-range strategic bomber’s stealth performance and plan track strategic call more and more attention. By comparing the stealth performance of next generation stealth bombers developed by the United States and Russia and their faced threats, higher
Xu Dingguo   +3 more
doaj   +1 more source

Drag Characteristics and Reduction Test for Hub of Coaxial-rotor Helicopter

open access: yesHangkong gongcheng jinzhan, 2020
The drag of coaxial helicopter hub accounts is more than 50% of the total helicopter's waste drag, so it is necessary to research the drag characteristics and reduction design of the hub. Wind tunnel test is carried out for a coaxial helicopter hub model,
LONG Haibin, WU Yuping
doaj   +1 more source

Stopped nucleons in configuration space [PDF]

open access: yes, 2016
In this note, using the simplified colour string model, we study the configuration space distribution of stopped nucleons in heavy-ion collisions. Given this model, we find that the stopped nucleons from the target and the projectile end up separated ...
Białas, Andrzej   +2 more
core   +2 more sources

The Influence of Reynolds Number on Boundary Layer Development and Stall Characteristics of Airfoil

open access: yesHangkong gongcheng jinzhan, 2019
Airfoil stall and its boundary layer development are fundamental scientific issues in aircraft design. For the trailing edge stall airfoil, The transition model coupled the Mentor k -ω SST model with the disturbance amplification factor transport ...
Zhang Yanjun   +3 more
doaj   +1 more source

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