Results 21 to 30 of about 30,241 (212)
Hypersonic Modes in Nanophononic Semiconductors [PDF]
Physical Review Letters, 2008 Frequency gaps and negative group velocities of hypersonic phonon modes in periodically arranged composite semiconductors are presented. Trends and criteria for phononic gaps are discussed using a variety of atomic-level theoretical approaches. From our calculations, the possibility of achieving semiconductor-based one-dimensional phononic structures ...
Hepplestone, SP, Srivastava, GP
openaire +3 more sources
Variant wing scheme and aerodynamic characteristics analysis of hypersonic vehicle
Hangkong gongcheng jinzhan, 2023 The variant aircraft can change its shape to adapt to different flight states and improve aerodynamic properties of aircraft. Aiming at a new hypersonic vehicle concept machine, the applicability of the wing variable sweep design on this hypersonic ...
ZHANG Xin +5 more
doaj +1 more source
Research on Aerothermoelasticity for Hypersonic Inlet with Complex Internal Flow
气体物理, 2023 Hypersonic inlet is very easy to induce aerothermoelastic problems under the aerodynamic load and aero-thermal action of complex flow. Deeply understanding the aerothermoelasticity mechanism of complex internal flow is of great significance for the ...
Kun YE, Yi-fan ZHANG, Zheng-yin YE
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Hypersonic interference heating in the vicinity of surface protuberances [PDF]
, 2010 The understanding of the behaviour of the flow around surface protuberances in hypersonic vehicles is developed and an engineering approach to predict the location and magnitude of the highest heat transfer rates in their vicinity is presented.
Garry, Kevin P. +4 more
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Transitional and turbulent heat transfer of swept cylinder attachment line in hypersonic flow [PDF]
, 2006 A wide range of experimental results carried out in low enthalpy facilities is used to sustain simple correlations predicting heat transfer rates on an attachment line in hypersonic flow.
Cooper, Richard K. +3 more
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Shanghai Jiaotong Daxue xuebao, 2021 In view of the issue that surface catalysis has a significant influence on aerodynamic heating of hypersonic vehicle heatshield and is difficult to accurately predict, a four-step surface heterogeneous catalytic model including physisorption ...
LI Qin, YANG Xiaofeng, DONG Wei, DU Yanxia
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A case study on the aerodynamic heating of a hypersonic vehicle [PDF]
, 2012 A Parabolised Navier-Stokes (PNS) flow solver is used to predict the aerodynamic heating on the surface of a hypersonic vehicle. This case study highlights some of the main heat flux sensitivies to various conditions for a full-scale vehicle and ...
MacManus, David G. +4 more
core +3 more sources
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
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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 +3 more
core +1 more source
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 +5 more
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