Search Results - "Cristini, Paul"

An axisymmetric time-domain spectral-element method for full-wave simulations: Application to ocean acoustics by Bottero, Alexis, Cristini, Paul, Komatitsch, Dimitri, Asch, Mark

“…The numerical simulation of acoustic waves in complex three-dimensional (3D) media is a key topic in many branches of science, from exploration geophysics to…”
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Some illustrative examples of the use of a spectral-element method in ocean acoustics by Cristini, Paul, Komatitsch, Dimitri

“…Some numerical results in the time domain obtained with the spectral-element method are presented in order to illustrate the high potential of this technique…”
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Numerical and Experimental Study of Wave Propagation in Water-Saturated Granular Media Using Effective Method Theories and a Full-Wave Numerical Simulation by Mizuno, Katsunori, Cristini, Paul, Komatitsch, Dimitri, Capdeville, Yann

“…In this article, the detection of an object buried in marine sediments is investigated. Using the results from a series of experiments realized in a tank…”
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Multi-axial unsplit frequency-shifted perfectly matched layer for displacement-based anisotropic wave simulation in infinite domain by Xie, Zhinan, Zheng, Yonglu, Cristini, Paul, Zhang, Xubin

“…Multi-axial perfectly matched layer (M-PML), known to have lost the perfect-matching property owing to multi-axial coordinate stretching, has been numerically…”
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On the reflection of time-domain acoustic spherical waves by a sinusoidal diffraction grating by Gao, Guochao, Cristini, Paul, Favretto-Cristini, Nathalie, Deumié, Carole

“…This work reports on some results obtained from numerical simulations of time-domain acoustic wave propagation in the presence of a periodically rough…”
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Numerical and experimental study on wave propagation in granular media using a spectral-element method by Mizuno, Katsunori, Cristini, Paul, Komatitsch, Dimitri, Capdeville, Yann

“…Acoustic systems with various operating frequencies are commonly used for the detection of objects buried in the marine sediments. However, the propagation of…”
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Impact of the Test Device on the Behavior of the Acoustic Emission Signals: Contribution of the Numerical Modeling to Signal Processing by Issiaka Traore, Oumar, Cristini, Paul, Favretto-Cristini, Nathalie, Pantera, Laurent, Viguier-Pla, Sylvie

“…In a context of nuclear safety experiment monitoring with the non destructive testing method of acoustic emission, we study the impact of the test device on…”
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An immersed interface method for the solution of the standard parabolic equation in range-dependent ocean environments by Sabatini, Roberto, Cristini, Paul

“…A numerical approach for the treatment of irregular ocean bottoms within the framework of the standard parabolic equation is proposed. The present technique is…”
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An immersed interface method for the solution of the wide-angle parabolic equation in range-dependent ocean environments by Sabatini, Roberto, Cristini, Paul

“…Taking into account accurately a complex topography, within the framework of the parabolic equation method in underwater acoustics, is a difficult task…”
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Numerical simulation of full-wave propagation in the time domain : an useful tool for underwater acoustic applications by Cristini, Paul

“…This paper aims at gathering several new applications which were made possible by the joint use of a spectral element method and high performance computing…”
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Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media by Ursin, Bjørn, Favretto-Cristini, Nathalie, Cristini, Paul

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Numerical modeling of low-frequency scattering from targets buried under rough seafloors by Sabatini, Roberto, Pailhas, Yan, Cristini, Paul, Xenaki, Angeliki

“…The acoustic backscattering of elastic bodies lying across the seafloor is a problem of great interest in many underwater applications, such as detecting and…”
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Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media by Ursin, Bjørn, Favretto-Cristini, Nathalie, Cristini, Paul

“…SUMMARY It is well known that seismic data that have been recorded in complex geological environments must be compensated for geometrical spreading before…”
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A perfectly matched layer for fluid-solid problems: Application to ocean-acoustics simulations with solid ocean bottoms by Xie, Zhinan, Matzen, René, Cristini, Paul, Komatitsch, Dimitri, Martin, Roland

“…A time-domain Legendre spectral-element method is described for full-wave simulation of ocean acoustics models, i.e., coupled fluid-solid problems in unbounded…”
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On the Influence of Slopes, Source, Seabed and Water Column Properties on T Waves: Generation at Shore by Bottero, Alexis, Cristini, Paul, Komatitsch, Dimitri

“…The term T waves is generally associated with acoustic waves generated by seismic events that subsequently travel horizontally in the ocean at the speed of…”
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An arbitrary-order immersed finite-difference method for wave propagation through fluid/solid interfaces by Sabatini, Roberto, Pailhas, Yan, Cristini, Paul, Xenaki, Angeliki

“…The immersed interface method (IIM) has recently gained popularity for the resolution of the linearized equations of continuum mechanics (LECM) that model the…”
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Some examples of the application of high-performance computing for time-domain full-wave simulations in underwater acoustics using a spectral-element method by Cristini, Paul, Komatitsch, Dimitri, Bottero, Alexis

“…Being able to perform accurate time-domain full-wave simulations in underwater acoustics is important within the context of complex environments. Among the…”
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Broadband transmission losses and time dispersion maps from time-domain numerical simulations in ocean acoustics by Bottero, Alexis, Cristini, Paul, Komatitsch, Dimitri, Brissaud, Quentin

“…In this letter, a procedure for the calculation of transmission loss maps from numerical simulations in the time domain is presented. It can be generalized to…”
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Numerical modeling of T-wave generation in a horizontally inhomogeneous ocean by Godin, Oleg A., Cristini, Paul, Bottero, Alexis, Monteiller, Vadim

“…T-waves are generated by earthquakes and travel horizontally with the speed of sound. They are the most common earthquake sounds in the ocean and make strong…”
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Multi-axial unsplit frequency-shifted perfectly matched layer for displacement-based anisotropic wave simulation in infinite domain by Xie, Zhinan, Zheng, Yonglu, Cristini, Paul, Zhang, Xubin

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