Results 21 to 30 of about 56,125 (155)
Skin friction and heat transfer in hypersonic transitional and turbulent boundary layers [PDF]
, 2021 The decompositions of the skin-friction and heat transfer coefficients based on the two-fold repeated integration in hypersonic transitional and turbulent boundary layers are analyzed to explain the generations of the wall skin friction and heat transfer.
arxiv +1 more source
Stabilization of Hypersonic Boundary Layers by Porous Coatings [PDF]
, 2001 A second-mode stability analysis has been performed for a hypersonic boundary layer on a wall covered by a porous coating with equally spaced cylindrical blind microholes.
Fedorov, Alexander V. +2 more
core +1 more source
BULLETIN OF "CAROL I" NATIONAL DEFENCE UNIVERSITY, 2022 Hypersonic missiles represent the new class of threats, capable declaratively and in a way that has not been proven in a theater of operations, to annihilate air and anti-missile defences that exist at this time. The sum of the new threat’s characteristics, high speed, increased maneuverability, and low flight altitude, get major concerns for air and ...
openaire +2 more sources
High-Order Methods for Hypersonic Flows with Strong Shocks and Real Chemistry [PDF]
, 2022 We compare high-order methods including spectral difference (SD), flux reconstruction (FR), the entropy-stable discontinuous Galerkin spectral element method (ES-DGSEM), modal discontinuous Galerkin methods, and WENO to select the best candidate to simulate strong shock waves characteristic of hypersonic flows. We consider several benchmarks, including
arxiv +1 more source
On upstream influence in supersonic flows [PDF]
, 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
Materials design for hypersonics
Nature CommunicationsAbstractHypersonic 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 +4 more sources
Application of AA-PSP to hypersonic flows: the double ramp model [PDF]
, 2012 Anodized Aluminium Pressure Sensitive Paint (AA-PSP) is known for its rapid response characteristics, making it a highly desirable technique when studying high-speed phenomenon on a global scale.
Basu +24 more
core +1 more source
A unified construction of all-speed HLL-type schemes for hypersonic heating computations [PDF]
arXiv, 2021 In this paper, a unified framework to develop all-speed HLL-type schemes for hypersonic heating computations is constructed. Such a unified construction method combines two effective improving techniques: a shock robustness improvement and a low-Mach number fix.
arxiv
Far field perturbations caused by a roughness element to the three dimensional hypersonic plate flow boundary layer [PDF]
, 2015 For the three dimensional hypersonic viscous compressible flat plate flow, when there is only small roughness on the wall, its effect can be considered as perturbation to two dimensional roughness-free plate flow.
Tao, Yang
core +1 more source
An initial review of hypersonic vehicle accidents [PDF]
arXiv, 2021 Hypersonic flight, generally defined as the region in which the speed of a vehicle exceeds Mach 5 and in which thermal loads become dominant, has seen more attention over the past several decades due to the potential military applications of such vehicles.
arxiv