Results 11 to 20 of about 138,816 (307)
Subsonic and Supersonic Jets and Supersonic Suppressor Characteristics [PDF]
Aeroacoustics Conference, 1975 Convergent and parallel flow nozzles were used with room temperature air to investigate the flow and acoustic characteristics over a Mach number range of 0.6 to 1.5. For subsonic jets the maximum sound pressure levels occurred at 19.1 from the axis and the sound pressure level decreased monotonically with increasing angle.
H. NAGAMATSU, R. SHEER, JR.
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Mach Fronts in Random Media with Fractal and Hurst Effects
Fractal and Fractional, 2021 An investigation of transient second sound phenomena due to moving heat sources on planar random media is conducted. The spatial material randomness of the relaxation time is modeled by Cauchy or Dagum random fields allowing for decoupling of fractal and
Junren Ran +2 more
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Prediction of the Supersonic Flow Base Pressure by Axisymmetric Direct Numerical Simulation [PDF]
Journal of Applied and Computational Mechanics, 2023 Axisymmetric direct numerical simulation (DNS) has been carried out to predict supersonic base flow behavior. Substantially fine grid has been used to perform calculations for the flow with Reynolds number up to 106.
Sergey A. Karskanov +5 more
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Characterization of Supersonic Compressible Fluid Flow Using High-Speed Interferometry
Sensors, 2021 This paper presents a very effective interference technique for the sensing and researching of compressible fluid flow in a wind tunnel facility. The developed technique is very sensitive and accurate, yet easy to use under conditions typical for ...
Pavel Psota +10 more
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MIXING IN SUPERSONIC TURBULENCE [PDF]
The Astrophysical Journal, 2010 In many astrophysical environments, mixing of heavy elements occurs in the presence of a supersonic turbulent velocity field. Here we carry out the first systematic numerical study of such passive scalar mixing in isothermal supersonic turbulence. Our simulations show that the ratio of the scalar mixing timescale, $τ_{\rm c}$, to the flow dynamical ...
Pan, Liubin, Scannapieco, Evan
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Dynamic stability of heated geometrically irregular cylindrical shell in supersonic gas flow
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018 On the basis of the Love model, a geometrically irregular heated cylindrical shell blown by a supersonic gas flow from one of its main surfaces is considered.
Grigory N Belostochnyi, Olga A Myltcina
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A Unified Asymptotic Theory of Supersonic, Transonic, and Hypersonic Far Fields
Axioms, 2022 The problems of steady, inviscid, isentropic, irrotational supersonic plane flow passing a body with a small thickness ratio was solved by the linearized theory, which is a first approximation at and near the surface but fails at far fields from the body.
Lung-Jieh Yang, Chao-Kang Feng
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Aerospace, 2018 The aim of this work is to highlight the significance of Fluid–Thermal–Structural Interaction (FTSI) as a diagnosis of existing designs, and as a means of preliminary investigation to ensure the feasibility of new designs before conducting experimental ...
Kalyani Bhide +2 more
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Implicit Subgrid-Scale Modeling of a Mach 2.5 Spatially Developing Turbulent Boundary Layer
Entropy, 2022 We employ numerically implicit subgrid-scale modeling provided by the well-known streamlined upwind/Petrov–Galerkin stabilization for the finite element discretization of advection–diffusion problems in a Large Eddy Simulation (LES) approach. Whereas its
Guillermo Araya, Christian Lagares
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Ultradiscrete kinks with supersonic speed in a layered crystal with realistic potentials [PDF]
, 2015 We develop a dynamical model of the propagating nonlinear localized excitations, supersonic kinks, in the cation layer in a silicate mica crystal. We start from purely electrostatic Coulomb interaction and add the Ziegler-Biersack-Littmark short-range ...
Archilla, Juan F. R. +4 more
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