搜索结果: 1-15 共查到“wave propagation”相关记录27条 . 查询时间(0.076 秒)
Computer animation as a tool to visualize effects of seismic wave propagation inside heterogeneous media
computer animations numerical modelling seismic wave propagations
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
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
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...
Experimental evidence of Alfv閚 wave propagation in a Gallium alloy
Experimental evidence Alfv閚 wave propagation Gallium alloy
2011/9/5
Experiments with a liquid metal alloy, galinstan, are reported and show clear evidence of Alfv閚 wave propagation as well as resonance of Alfv閚 modes. Galinstan is liquid at room temperature, and altho...
Wave Propagation and Quasinormal Mode Excitation on Schwarzschild Spacetime
Wave Propagation Quasinormal Mode Schwarzschild Spacetime General Relativity and Quantum Cosmology
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)...
Determining wave propagation characteristics of MV XLPE power cable using time domain reflectometry technique
Cross-linked polyethylene distribution power cables time domain reflectometry propagation constant attenuation constant phase constant propagation velocity
2011/3/22
In this paper, the wave propagation characteristics of single-phase medium voltage (MV) cross-linked polyethylene (XLPE) power cable are determined using time domain reflectometry (TDR) measurement te...
Temperature Dependence of Ultrasonic Longitudinal Guided Wave Propagation in Long Range Steel Strands
steel strand ultrasonic guided waves mode temperature coefficient
2011/8/4
Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands. Unfortunately the propagation velocity of ultrasonic gu...
Time domain numerical modeling of wave propagation in 2D heterogeneous porous media
porous media elastic waves Biot’s model time splitting
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
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
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
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
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...
Experimental Observation of Oscillating Wave Propagation on Switch Lines for Generation of Continuous Electromagnetic Waves
Oscillating Wave Propagation Switch Lines Continuous Electromagnetic Waves
2009/9/4
We report the experimental observation of the generation of continuous electrical waves in a switch line, which is a transmission line periodically loaded with electronic switches. The oscillating mot...
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
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
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...