Results 21 to 30 of about 28,434 (205)
Research on Hypersonic Vehicle Interception Conditions from a Small Velocity Ratio Perspective [PDF]
Hangkong bingqi, 2023 To address the problem of hypersonic vehicle interception, taking the air-breathing hypersonic vehicle as the target of interception, this paper employs the concept of engagement geometry to theoretically provide the necessary conditions for the ...
Liu Shuangxi, Yan Binbin, Zhang Tong, Zhang Xu, Yan Jie
doaj +1 more source
Large eddy simulation of supersonic flow in ducts with complex cross-sections
Theoretical and Applied Mechanics Letters, 2023 Large Eddy Simulation (LES) has been employed for the investigation of supersonic flow characteristics in five ducts with varying cross-sectional geometries.
Huifeng Chen +5 more
doaj +1 more source
Hypersonic Phononic Crystals [PDF]
Physical Review Letters, 2005 In this Letter we propose the use of hypersonic phononic crystals to control the emission and propagation of high frequency phonons. We report the fabrication of high quality, single crystalline hypersonic crystals using interference lithography and show that direct measurement of their phononic band structure is possible with Brillouin light ...
Gorishnyy, T. +4 more
openaire +3 more sources
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
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
core +1 more source
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
doaj +1 more source
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
core +1 more source
Numerical study on throttling characteristics of RBCC engines in ejector mode
Case Studies in Thermal EngineeringInvestigating the throttling characteristics of Rocket-Based Combined Cycle (RBCC) engines in ejector mode is crucial for adapting to varied flight mission demands.
Jikai Chen +9 more
doaj +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
doaj +1 more source