搜索结果: 1-15 共查到“理学 Wave Propagation”相关记录21条 . 查询时间(0.121 秒)
Computer animation as a tool to visualize effects of seismic wave propagation inside heterogeneous media
computer animations numerical modelling seismic wave propagations
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2015/9/30
A technique to make computer animations representing the propagation of antiplane shear waves in heterogeneous dissipative media is presented. The aim is to develop a useful tool to better investigate...
SWEEPING PRECONDITIONERS FOR ELASTIC WAVE PROPAGATION WITH SPECTRAL ELEMENT METHODS
Elastic wave seismic wave time-harmonic frequency domain spectral elements parallel preconditioner iterative solver sparse-direct perfectly matched layers full waveform inversion
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2015/7/14
We present a parallel preconditioning method for the iterative solution of the time-harmonicelastic wave equation which makes use of higher-order spectral elements to reduce pollution error. In partic...
Regional wave propagation using the discontinuous Galerkin method
Galerkin area had a continuous wave propagation unstructured tetrahedral mesh integration higher derivative simulate the high frequency wave field propagation distance
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2015/1/5
We present an application of the discontinuous Galerkin (DG) method to regional wave propagation. The method makes use of unstructured tetrahedral meshes, combined with a time integration scheme solvi...
Wave Propagation and Quasinormal Mode Excitation on Schwarzschild Spacetime
Wave Propagation Quasinormal Mode Schwarzschild Spacetime General Relativity and Quantum Cosmology
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2011/7/28
Abstract: To seek a deeper understanding of wave propagation on the Schwarzschild spacetime, we investigate the relationship between (i) the lightcone of an event and its caustics (self-intersections)...
Time domain numerical modeling of wave propagation in 2D heterogeneous porous media
porous media elastic waves Biot’s model time splitting
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2011/3/2
This paper deals with the numerical modeling of wave propagation in porous media described by Biot’s theory. The viscous efforts between the fluid and the elastic skeleton are assumed to be a linear f...
Convergence of frozen Gaussian approximation for high frequency wave propagation
Convergence of frozen Gaussian high frequency wave propagation
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2011/2/25
The frozen Gaussian approximation provides a highly efficient computational method for high frequency wave propagation. The derivation of the method is based on asymptotic analysis. In this paper, fo...
Brouwer's problem on a heavy particle in a rotating vessel: wave propagation, ion traps, and rotor dynamics
Rotating saddle Quadrupole trap Crystal optics Rotor dynamics
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2010/12/28
In 1918 Brouwer considered stability of a heavy particle in a rotating vessel. This was the first demon-stration of a rotating saddle trap which is a mechanical analogue for quadrupole particle traps ...
Brouwer's problem on a heavy particle in a rotating vessel: wave propagation, ion traps, and rotor dynamics
Rotating saddle Quadrupole trap Crystal optics Rotor dynamics Stokes waves
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2011/1/18
In 1918 Brouwer considered stability of a heavy particle in a rotating vessel. This was the first demon-stration of a rotating saddle trap which is a mechanical analogue for quadrupole particle traps ...
A new theoretical paradigm to describe hysteresis,discrete memory and nonlinear elastic wave propagation in rock
new theoretical paradigm hysteresis discrete memory nonlinear elastic wave propagation
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2009/11/16
The velocity of sound in rock is a strong function of pressure, indicating that wave propagation in rocks is very nonlinear. The quasistatic elastic properties of rocks axe hysteretic, possessing disc...
On a Modal Approach to Wave Propagation in a Laterally Homogeneous,Isotropic Halfspace and the Group of Motion of the Euclidean Plane
Modal Approach Wave Propagation Homogeneous
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2009/6/18
On a Modal Approach to Wave Propagation in a Laterally Homogeneous,Isotropic Halfspace and the Group of Motion of the Euclidean Plane.
The simulation of acoustic wave propagation by using characteristic curves with CIP method
CIP method characteristic curve acoustic wave propagation
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2009/3/5
In this paper, we applied the CIP (Cubic Interpolated Profile) method to the propagation phenomena of an acoustic wave based on the characteristics. The CIP method is a highly accurate method to solve...
The Numerical Modeling of Surface Wave Propagation in the Surf Zone
Surface Wave Propagation Surf Zone
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2009/2/18
A numerical model is used to simulate the shoreward propagation of a train of periodic borelike surface disturbances in the surf zone over a sloping beach. Turbulence production is included both in th...
Near-Inertial Wave Propagation In Geostrophic Shear
Near-Inertial Wave Geostrophic Shear
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2009/1/15
An approximate dispersion relation for near-inertial internal waves propagating in geostrophic shear is formulated that includes straining by the mean flow shear. Near-inertial and geostrophic motions...
Kelvin Wave Propagation in a High Drag Coastal Environment
Kelvin Wave Propagation High Drag Coastal Environment
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2009/1/6
Coastally trapped Kelvin waves in a model system of a flat half-planar ocean with a high-drag region of width L adjacent to the coast have properties that depend on L, and its drag, D0. For L less tha...
Wave Propagation in a Solid Ice Pack
Wave Propagation Solid Ice Pack
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2009/1/6
The analysis presented in this paper was inspired by the report that the R/V Polarstern has encountered surface waves of large amplitude hundreds of kilometers inside the ice pack in the Weddell Sea. ...