Results 31 to 40 of about 29,751 (218)

The spray characteristic of gas-liquid coaxial swirl injector by experiment

MATEC Web of Conferences, 2017
Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD), axial velocity and size data rate were measured under different gas injecting pressure ...
Chen Chen, Zhihui Yan, Yang Yang, Hongli Gao, Shunhua Yang, Lei Zhang   +5 more
doaj   +1 more source

Experimental Investigation on the Influence of Yaw Angle on the Inlet Performance at Mach 7 [PDF]

, 2010
This paper presents the results of an extensive measurement campaign that was conducted with an two-dimensional hypersonic inlet in the Hypersonic Windtunnel H2K at the German Aerospace Center in Cologne in order to study the effects of angle of yaw on ...
Ali Gülhan, Hohn, Oliver, Gülhan, Ali, Oliver Hohn   +3 more
core   +1 more source

Review of Energy Deposition for High-Speed Flow Control

Energies, 2022
Energy deposition for flow and flight control has received significant interest in the past several decades due to its potential application to high-speed flow and flight control. This paper reviews recent progress and recommends future research.
Doyle Knight, Nadia Kianvashrad
doaj   +1 more source

Influence of injection angles on flow structures and mixing properties in a supersonic combustor at low Mach supersonic crossflow

Scientific Reports
The fuel-air mixing is of paramount importance in hypersonic air-breathing vehicles, and its performance is closely related to the fuel injection angle.
Lin Zhang, Jianhan Liang, Yi Wang, Wei Zhao, Leichao Yang   +4 more
doaj   +1 more source

A Robust Control Method for the Trajectory Tracking of Hypersonic Unmanned Flight Vehicles Based on Model Predictive Control

Drones
Hypersonic unmanned flight vehicles have complex dynamic characteristics, such as nonlinearity, strong coupling, multiple constraints, and uncertainty.
Haixia Ding, Bowen Xu, Weiqi Yang, Yunfan Zhou, Xianyu Wu   +4 more
doaj   +1 more source

Thermal Protection Mechanism of a Novel Adjustable Non-Ablative Thermal Protection System for Hypersonic Vehicles

Aerospace, 2022
In order to improve the thermal protection performance of the active thermal protection system (TPS) based on the spike and jet, an adjustable non-ablative thermal protection system, of which the spike can be rotated in the direction of the free stream ...
Bin Chang, Jie Huang, Wei-Xing Yao
doaj   +1 more source

Numerical and Experimental Investigations of a Generic Rocket Launcher Configuration with Cold Plume in Hypersonic Flow [PDF]

, 2013
A generic rocket launcher geometry is studied experimentally and numerically at hypersonic flow conditions including a cold plume. The experiments are conducted in a hypersonic Ludwieg tube while numerical calculations are performed with a finite-volume
Oßwald, Kai, Radespiel, Rolf, Hannemann, Volker, Stephan, Sören, Hannemann, Klaus   +4 more
core  

A Class of Three-Dimensional Optimum Wings in Hypersonic Flow [PDF]

, 1967
The idea of using streamlines of a certain known flow field to construct generally three-dimensional lifting surfaces together with the method of evaluating the aerodynamic forces on the surfaces, developed by Nonweiler, Jones and Woods, has been ...
Zien, Tse-Fou
core   +1 more source

Deep transfer learning for three-dimensional aerodynamic pressure prediction under data scarcity

Theoretical and Applied Mechanics Letters
Aerodynamic evaluation under multi-condition is indispensable for the design of aircraft, and the requirement for mass data still means a high cost. To address this problem, we propose a novel point-cloud multi-condition aerodynamics transfer learning ...
Hao Zhang, Yang Shen, Wei Huang, Zan Xie, Yao-Bin Niu   +4 more
doaj   +1 more source

A Review of Aerodynamic Design for Wide-Speed Range Waverider Vehicle [PDF]

Hangkong bingqi
As a hypersonic aerodynamic configuration that can break through the lift-drag ratio barrier, waverider configuration is an important candidate for wide-speed reusable aircraft. Therefore.
Wang Chenhang, Jin Liang, Zhao Zhentao, Xie Zan, Huang Wei
doaj   +1 more source