Results 11 to 20 of about 61,014 (226)
FLEET Velocimetry for Aerodynamics
Annual Review of Fluid Mechanics, 2022 Long-lasting emission from femtosecond excitation of nitrogen-based flows shows promise as a useful mechanism for a molecular tagging velocimetry instrument. The technique, known as femtosecond laser electronic excitation tagging (FLEET), was invented at
P. Danehy +4 more
semanticscholar +1 more source
气体物理, 2023 It is important to study the effects of pyrolysis and ablation of heat protection material in integrated design of hypersonic vehicles. In order to predict and assess the material pyrolysis and ablation effects on target signatures and microwave ...
Tie-suo GAO +5 more
doaj +1 more source
Learning aerodynamics with neural network
Scientific Reports, 2022 We propose a neural network (NN) architecture, the Element Spatial Convolution Neural Network (ESCNN), towards the airfoil lift coefficient prediction task.
W. Peng +3 more
semanticscholar +1 more source
Aerodynamics-assisted, efficient and scalable kirigami fog collectors
Nature Communications, 2021 To address the global water shortage crisis, one of the promising solutions is to collect freshwater from the environmental resources such as fog. However, the efficiency of conventional fog collectors remains low due to the viscous drag of fog-laden ...
Jing Li +7 more
semanticscholar +1 more source
Hypersonic aerodynamic force balance using temperature compensated semiconductor strain gauges
Advances in Aerodynamics, 2023 Metal foil strain gauges remain the state-of-the-art transducers for wind tunnel balances. While strain gauge technology is very mature, piezoresistive semiconductor sensors offer alternatives that are worth exploring to assess their unique benefits ...
Huacheng Qiu +5 more
doaj +1 more source
Numerical Study of Nonadiabatic Wall Effects on Aerodynamic Characteristics of CHN-T1 Standard Model
Aerospace, 2023 Cryogenic wind tunnels provide the for possibility aerodynamic tests to take place over high Reynolds numbers by operating at a low gas temperature to meet the real flight simulation requirements, especially for state-of-the-art large transport aircrafts.
Xiaobing Wang +7 more
doaj +1 more source
Unsteady Flow Driven by the Counter-Flow Jets of High-Altitude Engine Based on DSMC Simulation
气体物理, 2023 Counter-flow engines are often used for aircraft slowing or separating. In order to study the interaction between the counter-flow jets and free stream at high altitudes, the rarefied flow driven by two counter-flow jets and hypersonic free stream was ...
Jun-lin WU +4 more
doaj +1 more source
Aerodynamics of Boundary Layer Ingesting Fuselage Fans
, 2021 Boundary Layer Ingestion (BLI) potentially offers a large reduction in fuel burn and pollutant emissions. The Propulsive Fuselage Concept features an electrically driven fan at the aft section of the airframe that ingests 360◦ of the fuselage boundary ...
A. C. Pardo, C. Hall
semanticscholar +1 more source
Xibei Gongye Daxue Xuebao, 2019 The air intake design system of the dorsal intake combined with the S-shaped inlet has been widely used in various combat aircraft due to its good stealth characteristics.
doaj +1 more source
Advances in Aerodynamics, 2020 Properties of wall pressure beneath a transitional hypersonic boundary layer over a 7∘ half-angle blunt cone at angle of attack 6∘ are studied by Direct Numerical Simulation. The wall pressure has two distinct frequency peaks. The low-frequency peak with
Siwei Dong +4 more
doaj +1 more source