Results 21 to 30 of about 61,852 (289)
Nonlinear energy in a wave turbulence system; pp. 430–437 [PDF]
Proceedings of the Estonian Academy of Sciences, 2015 Single-wavenumber representations of nonlinear energies are required to investigate energy budget due to nonlinear interactions among Fourier modes in wave turbulence.
Naoto Yokoyama, Masanori Takaoka
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Remote Sensing, 2022 We used the Constellation Observing System for Meteorology, Ionosphere, and Climate-2 (COSMIC-2) dry temperature profile data from December 2019 to November 2021 to study the vertical wavenumber spectra of the potential energy of stratospheric gravity ...
Tao Qu +4 more
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Journal of Fluid Science and Technology, 2014 To examine pressure fluctuations in the near acoustic field, the wavenumber-frequency spectrum method was applied to the flow field around a square cylinder placed near a flat plate. Since the pressure fluctuations in the near field contain both acoustic
Yasuhiko OKUTSU +3 more
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Turbulent boundary layer noise : direct radiation at Mach number 0.5 [PDF]
, 2013 Boundary layers constitute a fundamental source of aerodynamic noise. A turbulent boundary layer over a plane wall can provide an indirect contribution to the noise by exciting the structure, and a direct noise contribution.
GLOERFELT, Xavier, BERLAND, Julien
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On a fine localization of the Mathieu azimuthal numbers by Cassini ovals
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 The study is devoted to numerical and analytical problems concerning generating periodic and antiperiodic solutions of the angular (circumferential) Mathieu equation obtained for the circumferential harmonics of an elliptic cylinder.
Yuri Nikolaevich Radayev +1 more
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Sensors, 2021 Noncontact ultrasonic detection technology is an effective method to detect damage in time. This paper proposes a noncontact damage detection system based on air-coupled ultrasound and full-field laser vibrometer, which realizes the excitation of ...
Hui Zhang +3 more
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Iraqi Geological Journal, 2023 Multiple eliminations (de-multiple) are one of seismic processing steps to remove their effects and delineate the correct primary refractors. Using normal move out to flatten primaries is the way to eliminate multiples through transforming these
Ahmed Al-Rahim, Lamees Abdulkareem
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On plane thermoelastic waves in hemitropic micropolar continua
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 The paper deals with the coupled heat transport and dynamic equations of the hemitropic thermoelastic micropolar continuum formulated in terms of displacements, microrotations and temperature increment which are to be determined in applied problems.
Yuri Nikolaevich Radayev +1 more
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Complex Wavenumber Rossby Wave Ray Tracing
, 2019 This paper presents a methodology for performing complex wavenumber ray tracing in which both wave trajectory and amplitude are calculated. This ray-tracing framework is first derived using a scaling in which the imaginary wavenumber component is assumed
Shaman, Jeffrey +2 more
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The Helmholtz Equation with Uncertainties in the Wavenumber
Journal of Scientific ComputingAbstractWe investigate the Helmholtz equation with suitable boundary conditions and uncertainties in the wavenumber. Thus the wavenumber is modeled as a random variable or a random field. We discretize the Helmholtz equation using finite differences in space, which leads to a linear system of algebraic equations including random variables. A stochastic
Roland Pulch, Olivier Sète
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