Results 21 to 30 of about 61,445 (265)
Stabilized detonation for hypersonic propulsion
Proceedings of the National Academy of Sciences of the United States of America, 2021 Significance There is now an intensifying international effort to develop robust propulsion systems for hypersonic and supersonic flight. Such a system would allow flight through our atmosphere at very high speeds and allow efficient entry and exit from ...
D. Rosato +5 more
semanticscholar +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
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
Supersonic and Hypersonic Drag Coefficients for a Sphere
AIAA Journal, 2021 A comprehensive review of all relevant experimental data was completed, including recent data for the drag coefficient for a sphere in supersonic and hypersonic flows.
E. Loth +4 more
semanticscholar +1 more source
Shock-induced heating and transition to turbulence in a hypersonic boundary layer [PDF]
Journal of Fluid Mechanics, 2020 The interaction between an incident shock wave and a Mach-6 undisturbed hypersonic laminar boundary layer over a cold wall is addressed using direct numerical simulations (DNS) and wall-modelled large-eddy simulations (WMLES) at different angles of ...
Lin Fu +4 more
semanticscholar +1 more source
Finite-rate chemistry effects in turbulent hypersonic boundary layers: A direct numerical simulation study [PDF]
Physical Review Fluids, 2021 The accurate prediction of hypersonic flows is a key challenge for the design of reentry bodies or hypersonic aircraft. Knowledge concerning the wall-bounded turbulence is especially needed.
D. Passiatore +3 more
semanticscholar +1 more source
Research Progress of hypersonic boundary layer transition control experiments
Advances in Aerodynamics, 2022 Hypersonic boundary layer transition is a hot yet challenging problem restricting the development and breakthrough of hypersonic aerodynamics. In recent years, despite great progress made by wind tunnel experiment, transition mechanism and transition ...
He-sen Yang +6 more
semanticscholar +1 more source
Entropy, 2022 Strong viscous interaction and multiple flow regimes exist when vehicles fly at high altitude and high Mach number conditions. The Navier–Stokes(NS) solver is no longer applicable in the above situation.
Dingwu Jiang +3 more
doaj +1 more source
Aerodisk Effect on Hypersonic Boundary Layer Transition and Heat Transfer of HIFiRE-5 Vehicle
Aerospace, 2022 The substantial aerodynamic drag and severe aerothermal loads, which are closely related to boundary layer transition, challenge the design of hypersonic vehicles and could be relieved by active methods aimed at drag and heat flux reduction, such as ...
Yatian Zhao, Zhiyuan Shao, Hongkang Liu
doaj +1 more source
Assessing the Sustainability of Liquid Hydrogen for Future Hypersonic Aerospace Flight
Aerospace, 2022 This study explored the applications of liquid hydrogen (LH2) in aerospace projects, followed by an investigation into the efficiency of ramjets, scramjets, and turbojets for hypersonic flight and the impact of grey, blue, and green hydrogen as an ...
Abdalrahman Khaled Mohammad +4 more
doaj +1 more source