Results 11 to 20 of about 22,114 (235)

Lessons From Deep Eutectic Solvents to Design High Entropy Electrolytes for Electrochemical Energy Storage. [PDF]

open access: yesChemSusChem
The aim of this perspective is demonstrating how the correspondence between deviations from ideality and solvation structure observed in deep eutectic solvents may help for designing the specific composition of high entropy electrolytes that maximize performance in electrochemical energy storage systems.
Zhang W   +8 more
europepmc   +2 more sources

Materials design for hypersonics. [PDF]

open access: yesNat Commun
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.
Peters AB   +8 more
europepmc   +5 more sources

Hypersonic Phononic Crystals [PDF]

open access: yesPhysical 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]

open access: yesPhysical 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]

open access: yes, 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

Transitional and turbulent heat transfer of swept cylinder attachment line in hypersonic flow [PDF]

open access: yes, 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

Smooth leading edge transition in hypersonic flow. [PDF]

open access: yes, 1999
The boundary layer transition along the attachment line of a smooth swept circular cylinder in hypersonic flow is investigated in a blowdown wind tunnel. A wide range of spanwise Mach numbers Me (3.28 to 6.78) is covered with the help of different models
Alziary De Roquefort, T.   +3 more
core   +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

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

open access: yes, 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

Numerical study on throttling characteristics of RBCC engines in ejector mode

open access: yesCase Studies in Thermal Engineering
Investigating 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

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