Results 11 to 20 of about 72,125 (260)

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

open access: yesScientific 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   +4 more
doaj   +2 more sources

Materials design for hypersonics [PDF]

open access: yesNature Communications
AbstractHypersonic vehicles must withstand extreme conditions during flights that exceed five times the speed of sound. These systems have the potential to facilitate rapid access to space, bolster defense capabilities, and create a new paradigm for transcontinental earth-to-earth travel.
Adam B. Peters   +8 more
openaire   +5 more sources

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions [PDF]

open access: yesAdvanced Science, Volume 13, Issue 11, 23 February 2026.
A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang   +9 more
wiley   +2 more sources

Hypersonic aerodynamics on thin bodies with interaction and upstream influence [PDF]

open access: yes, 1994
In the fundamental configuration studied here, a steady hypersonic free stream flows over a thin sharp aligned airfoil or flat plate with a leading-edge shock wave, and the flow field in the shock layer (containing a viscous and an inviscid layer) is ...
Khorrami, AF, Smith, FT
core   +1 more source

Aerodisk Effect on Hypersonic Boundary Layer Transition and Heat Transfer of HIFiRE-5 Vehicle

open access: yesAerospace, 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

open access: yesAerospace, 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

Experimental Investigation on the Control of Hypersonic Shock Wave/Boundary Layer Interaction Using Surface Arc Plasma Actuators at Double Compression Corner

open access: yesAerospace, 2023
Compression corner shock wave/boundary layer interaction (SWBLI) is a typical shock wave/boundary layer interaction (SWBLI) problem in supersonic/hypersonic flows. In previous studies, the separation flow is usually caused by a single shock wave. However,
Bo Yang   +5 more
doaj   +1 more source

On upstream influence in supersonic flows [PDF]

open access: yes, 2005
The general problem of propagation of three-dimensional disturbances in viscous supersonic flows is considered in the framework of characteristic analysis.
Krechetnikov, R., Lipatov, I. I.
core   +1 more source

Fluid/Thermal/Structural Coupling Simulation on Effects of Forebody-Inlet Thermal Deformation on Intake Performance

open access: yes气体物理, 2023
Intake performance is one of the most important factors relating with the forebody-inlet design for air-breathing hypersonic vehicles. The intake performance will be altered due to hypersonic flow field change by the thermal deformation of forebody and ...
Si-yi LI   +5 more
doaj   +1 more source

Robust multi-fidelity design of a micro re-entry unmanned space vehicle [PDF]

open access: yes, 2011
This article addresses the preliminary robust design of a small-scale re-entry unmanned space vehicle by means of a hybrid optimization technique. The approach, developed in this article, closely couples an evolutionary multi-objective algorithm with a ...
Aupoix B.   +9 more
core   +1 more source

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