... Galerkin (NDG) method, in which the unstructured uniform triangular meshes are used for the model meshing and an explicit upwind numerical flux derived from Riemann problem is adopted to handle the boundary conditions at the acoustic-elastic interface. The numerical results demonstrate that the proposed...

... ABSTRACT We present a domain decomposition method, i,e, a discontinuous Galerkin pseudospectral time domain algorithm to simulate wave propagation in 3-D full anisotropic elastic media. An exact upwind flux is first proposed to resolve the accurate coupling of multiple domains...

... differential equations describing the poroelasticity with out any constraints on pore geometry and source frequency. Numerical solution of the system is obtained using a high order nodal Discontinuous Galerkin (DG) scheme with a penalized central flux, dealing with the natural boundary conditions implicitly...

... ABSTRACT Measurements of muon flux and direction at depth provides constraints on density distribution, both spatially and as a function of time. Combination of muon measurements and seismic data improve density estimation and allow the resolution of elastic parameters. Three different ways...

... to characterize them. They are increasingly being applied in settings where cased wells are present. Most commonly-used casing materials, such as steel, are highly conductive, have a significant, often variable, magnetic permeability, and therefore significantly impact the behavior of the EM fields and fluxes...

... formulation, avoid the diagonalization into polarized wave constituents such as in the approach based on solving element-wise Riemann problems, and essentially append penalty terms, based on interior boundary continuity conditions, to the numerical flux so that the consistency condition holds...

... is based on the observation that for any conductivity model a number of different criteria can be considered for the homogenization problem. In particular, different physical fields and fluxes can be considered. Our framework allows the choice of the criteria that is the most appropriate for the goal...

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