Acoustic Wave Equation
Error estimates of a semi discrete LDG method for the system of damped acoustic wave equation
... of acoustic wave equation in a bounded domain with lower-order damping terms and present a priori error analysis introducing a LDG method for the ...
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A High Order Approximation of the Two Dimensional Acoustic Wave Equation with Discontinuous Coefficients
... Abstract This paper concerns with the modeling and construction of a fifth order method for two dimensional acoustic wave equation in heterogenous media. The method is based on a standard ...
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High order immersed interface method for acoustic wave equation with discontinuous coeffcients
... In this paper, a sixth order method for the acoustic wave equation with discontinuous coefficients is presented. This higher order method in some sense is an improvement on the works of Zhang and ...
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On the solution of an acoustic wave equation with variable order derivative loss operator
... an acoustic wave equation to the concept of the variational-order derivative and the solution of the generalized equation using the Crank-Nicholson ...
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The Acoustic Wave Equation in the Expanding Universe: Sachs-Wolfe Theorem »
... to equation (10) forms a random wave field in some auxiliary static Robertson–Walker ...in equation (10); con- sequently, the dispersion relation (12) does not indicate them as critical ...treatment. ...
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Wave Equation Simulation Using a Compressed Modeler
... fidelity wave solvers are daunting for many imaging and data processing ...the acoustic wave equation many times for related prob- lems by using the method of Proper Orthogonal De- composition ...
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Influential Factors Analysis of Full Waveform Inversion In Time Domain For Near-Surface Velocity Modeling
... Seismic wave velocity is one of the most important parameters in the process of seismic data processing and interpretation, which is significant for calculating the near-surface statics, migration, predicting rock ...
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Acoustic Based Crosshole Full Waveform Slowness Inversion in the Time Domain
... We develop a new full waveform inversion (FWI) method for slowness with the crosshole data based on the acoustic wave equation in the time domain. The method combines the total variation (TV) ...
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A review of acoustic FDTD simulation technique and its application to underground cavity detection
... the acoustic experts have been investigated standard finite difference that is able to exhibit good overview of both stability and accuracy methods for the past two decades (Bording and Lines, 1997; Carcione et ...
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Acoustic Wave Propagator—A Split Region Implementation »
... In this article we develop and implement a split region technique that solves the time-dependent acoustic wave equation with greatly increased efficiency. This method uses a sophisticated Chebyshev ...
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Finite Difference Solution of the Helmholtz Equation Based on Two Domain Decomposition Algorithms
... of acoustic wave equation is an important ...Helmholtz equation is the ver- sion of acoustic wave equation in the frequency ...seismic wave propagation, imaging and ...
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Large-scale numerical modeling of hydro-acoustic waves generated by tsunamigenic earthquakes
... it can be noted by looking at the spectra, the comparison is in a good agreement for the MSEWC reproduced fre- quency range (0.15–0.3 Hz). In the depth-integrated model- ing the reproduction of frequencies out of this ...
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The detection of ultrasound using fiber-optic sensors
... ultrasonic wave- length and the mechanical field (strain, pressure or displacement) to which the sensor is configured to ...the wave and the fiber ...incident wave is ...
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Modeling Sound Propagation Using the Corrective Smoothed Particle Method with an Acoustic Boundary Treatment Technique
... of acoustic boundaries is observed, and rigid acoustic boundary developed from the solid boundary in fluid dynamics is shown in [20, 21, ...different acoustic boundaries is important for ...
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Analytical Solutions of Nonlinear Coupled Schrodinger–KdV Equation via Advance Exponential Expansion
... simple equation method [1, 2], the ( G ′ / G ) - expansion method [3, 4], the tanh method [5, 6], the Homotopy perturbation technique [7], the homogeneous ...
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Full discretization of wave equation
... Laplace equation and Maxwell system, the finite element method is one of the most relied on methods because it is much more interested in the analysis of the error committed between the exact solution and the ...
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Study of Surface Acoustic Wave Sensor
... surface acoustic wave device (SAW) ...surface wave. Direct coupling to a surface elastic wave is possible at the boundary of a piezoelectric solid if any of the components of strain at the ...
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A New Wave Equation of the Electron
... respectively. This implies that this plane wave is a col- lection of two waves of two different frequencies but same wavelength. It is thus a wavepacket. We may as- sume that a particle is a combination of two ...
5
New Applications to Solitary Wave Ansatz
... In recent time, the numerous approaches have been developed to obtain the solutions of nonlinear equations. For example the ( G G ′ ) -expansion method [5] [6], the first integral method [7], the adomian decomposition ...
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Projective structure and integrable geodesic flows on the extension of Bott Virasoro group
... Ito equation, modified dispersive water wave equation, and modified dispersionless long wave equation are the geodesic flows with respect to an L 2 metric on the semidirect product space ...
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