Results 21 to 30 of about 49,122 (277)

Numerical Study of Nonadiabatic Wall Effects on Aerodynamic Characteristics of CHN-T1 Standard Model

open access: yesAerospace, 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

Numerical Simulation on Pyrolysis and Ablation Effects for Surface Material of Hypersonic Reentry Body

open access: yes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

Gas-kinetic unified algorithm for computable modeling of Boltzmann equation and application to aerothermodynamics for falling disintegration of uncontrolled Tiangong-No.1 spacecraft

open access: yesAdvances in Aerodynamics, 2019
How to solve the hypersonic aerothermodynamics around large-scale uncontrolled spacecraft during falling disintegrated process from outer space to earth, is the key to resolve the problems of the uncontrolled Tiangong-No.1 spacecraft reentry crash.
Zhi-Hui Li   +5 more
doaj   +1 more source

Numerical Investigation of Dorsal S-Shaped Inlet Flow Characteristic and Effects of Related Parameters

open access: yesXibei 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

Applied Aerodynamics [PDF]

open access: yes, 2012
Aerodynamics, from a modern point of view, is a branch of physics that study physical laws and their applications, regarding the displacement of a body into a fluid, such concept could be applied to any body moving in a fluid at rest or any fluid moving ...

core   +1 more source

Wall pressure beneath a transitional hypersonic boundary layer over an inclined straight circular cone

open access: yesAdvances 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

Unsteady Flow Driven by the Counter-Flow Jets of High-Altitude Engine Based on DSMC Simulation

open access: yes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

Research on Aerodynamic Shape Design Scheme of a Distributed Propeller Transport Aircraft and Its Slipstream Effect

open access: yesXibei Gongye Daxue Xuebao, 2019
With the continuous development and widespread attention of electric propulsion technology in traditional transportation fields such as automobiles and trains, the distributed propeller propulsion technology applied to electric or hybrid electric medium ...

doaj   +1 more source

High frequency AC electric glow discharge visualization technology and application in big diameter hypersonic low-density wind tunnel

open access: yesAdvances in Aerodynamics, 2021
In order to visualize the rarefied flow field in a Φ1m hypersonic low-density wind tunnel, an electric glow discharge technique based on high frequency excited power has been developed.
Wanqiu Jiang   +7 more
doaj   +1 more source

Effect of gas blowing on the head of thermal ablation vehicle

open access: yesAdvances in Aerodynamics, 2022
The reentry vehicle will encounter thermal ablation, especially at the stagnation point regime. A theoretical work has been done to analyze the thermal effect of gas blowing due to thermal ablation of surface material on the head of a general hypersonic ...
Qing Li   +3 more
doaj   +1 more source

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