Wave propagation problems
DGTD methods using modal basis functions and symplectic local time-stepping: application to wave propagation problems
... The Discontinuous Galerkin methods enjoy an impressive favor nowadays and are now used in many and various applications [4], taking advantage of their ability to achieve a high order of accuracy by simply choosing ...
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Overview on a selection of recent works in asymptotic analysis for wave propagation problems
... for wave propagation problems Xavier Claeys In recent years, the study of wave propagation has induced a lot of research in relation with asymptotic ...of problems may possibly ...
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Symplectic local time-stepping in non-dissipative DGTD methods applied to wave propagation problems
... Abstract: The Discontinuous Galerkin Time Domain (DGTD) methods are now popular for the solution of wave propagation problems. Able to deal with unstructured, possibly locally-refined meshes, they ...
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Sharp stability analysis for high-order finite element discretizations of general wave propagation problems
... However, plugging it in the PDE problem solved by u ? φ , we obtain an actual definition for the u j . T. Chaumont-Frelet, S. Nicaise, 2019 Wavenumber explicit convergence analysis for finite element discretizations of ...
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Finite element discretizations of high-frequency wave propagation problems in heterogeneous media
... However, plugging it in the PDE problem solved by u ? φ , we obtain an actual definition for the u j . T. Chaumont-Frelet, S. Nicaise, 2019 Wavenumber explicit convergence analysis for finite element discretizations of ...
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A dual-primal coupling technique with local time step for wave propagation problems
... two wave propagation problems in two different regions, it can be interesting, in order to keep the same accuracy in the whole domain, to introduce non matching grids in ...
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Hybridizable Discontinuous Galerkin p-adaptivity for wave propagation problems
... On the contrary, discontinuous Galerkin methods (DG) [ 29 , 30 , 31 ] provide a natural framework for p -variable FE computations: an element by element discontinuous approximation is considered and required continuity ...
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Absorbing boundary conditions and perfectly matched layers in wave propagation problems
... Absorbing boundary conditions and perfectly matched layers in wave propagation problems Frédéric Nataf Abstract. In this article we discuss different techniques to solve numerically wave ...
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Some New Mixed Finite Elements in View of the Numerical Solution of Time Dependent Wave Propagation Problems
... Unit´e de recherche INRIA Lorraine, Technopˆole de Nancy-Brabois, Campus scientifique, ` NANCY 615 rue du Jardin Botanique, BP 101, 54600 VILLERS LES Unit´e de recherche INRIA Rennes, Ir[r] ...
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The fictitious domain method and applications in wave propagation
... Special interest has been given to this approach as it has been shown to lead to efficient numerical methods for a large number of applications (e.g [1, 19, 13, 12, 14, 16, 17]) and these last years for time dependent ...
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Manufacturing Data Uncertainties Propagation Method in Burn-Up Problems
... 𝜕ℎ/𝜕𝜅 𝑘 which is the sensitivity of the interest response ℎ to the input 𝜅 𝑘 . In fact, this would be possible if large CPU time is available on HPC clusters. For example, to calculate the sensitivity of reactivity to ...
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An efficient data structure to solve front propagation problems
... 1 Introduction This paper is devoted to the study of an efficient numerical technique for coding front propagation in high dimension coming from some optimal control problems. The idea of level set ...
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Passive Models of Viscothermal Wave Propagation in Acoustic Tubes
... viscothermal wave propagation in a cylindrical tube has been presented recently in this journal, intended as a starting point for time domain numerical method ...
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Wave Propagation in Random Waveguides with Long-Range Correlations
... the propagation medium induce on the pulse a mode-dependent and frequency-dependent phase modulation driven by a single standard fractional Brownian motion, and spread dispersively through the kernel K j,L ...this ...
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Photoelastic study of acoustic wave propagation in grain packings
... the propagation of a compressive wave along a 1D chain of ...the wave speed on the imposed static compressive force and we compare the results to the spherical bead ...
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Borehole Stoneley Wave Propagation Across Heterogeneous And Permeable Structures
... Specifically, four types of such structures are studied, a fluid- filled fracture (horizontal or inclined), an elastic layer of different properties, a permeable porous layer, and a laye[r] ...
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Linear spectral numerical model for internal gravity wave propagation
... the propagation of internal gravity wave fluctuations in a stably stratified ...gravity wave fluctuations produced by identified ...gravity wave packet free propagation, the model ...
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Numerical simulation of incoherent optical wave propagation in nonlinear fibres
... 2.2 Embedded Runge-Kutta method for local error estimation Any numerical method for solving the GNLSE will per- form poorly if the approximate solution is computed on a mesh grid with a constant step h. Ideally the step ...
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Millimeter-Wave Propagation Measurements at 60 GHz in Indoor Environments
... The present study is a part of the FUI OptimiSME project, which aims to optimize the deployment of multi-band radio networks for small businesses. In this work, we studied the propagation with measurements in two ...
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Wave propagation in highly inhomogeneous thin films : exactly solvable models
... the propagation of EM waves in heterogeneous media with positive ε, although the tunneling phenomena, which arise when ε< 0, were touched sometimes, ...of wave propagation in such ...
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