Results 31 to 40 of about 67,117 (293)
Hypersonic Crossflow Instability
Journal of Spacecraft and Rockets, 2018 Under the auspices of NATO STO AVT-240: “Hypersonic Boundary-Layer Transition Prediction”, this paper describes the results of close collaborations among the authors toward the fundamental understa...
William S. Saric +6 more
openaire +3 more sources
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
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 The Navier–Stokes(NS) solver is no longer applicable in the above situation.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
Discontinuous Galerkin Methods for Hypersonic Flows [PDF]
arXiv, 2023 In recent years, high-order discontinuous Galerkin (DG) methods have emerged as an attractive approach for numerical simulations of compressible flows. This paper presents an overview of the recent development of DG methods for compressible flows with particular focus on hypersononic flows. First, we survey state-of-the-art DG methods for computational
arxiv
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
Generalized Newton-Busemann Law For Two-Dimensional Steady Hypersonic-limit Euler Flows Passing Ramps With Skin-Frictions [PDF]
arXiv, 2023 By considering Radon measure solutions for boundary value problems of stationary non-isentropic compressible Euler equations on hypersonic-limit flows passing ramps with frictions on their boundaries, we construct solutions with density containing Dirac measures supported on the boundaries of the ramps, which represent the infinite-thin shock layers ...
arxiv
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
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
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
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