91 citations · 192 across the 6 of their papers we have counts for
6 papers
Efficient quadrature rules for computing the stiffness matrices of mass-lumped tetrahedral elements for linear wave problems
S. Geevers, W. A. Mulder, J. J. W. van der Vegt
We present new and efficient quadrature rules for computing the stiffness matrices of mass-lumped tetrahedral elements for wave propagation modelling. These quadrature rules allow…
A parameterization analysis for acoustic full-waveform inversion of sub-wavelength anomalies
Pawan Bharadwaj, Wim Mulder, Guy Drijkoningen
In the case of multi-parameter full-waveform inversion, the computation of the additional Hessian terms that contain derivatives with respect to more than one type of parameter is…
New Higher-Order Mass-Lumped Tetrahedral Elements for Wave Propagation Modelling
S. Geevers, W. A. Mulder, J. J. W. van der Vegt
We present a new accuracy condition for the construction of continuous mass-lumped elements. This condition is less restrictive than the one currently used and enabled us to constr…
Dispersion Properties of Explicit Finite Element Methods for Wave Propagation Modelling on Tetrahedral Meshes
S. Geevers, W. A. Mulder, J. J. W. van der Vegt
We analyse the dispersion properties of two types of explicit finite element methods for modelling acoustic and elastic wave propagation on tetrahedral meshes, namely mass-lumped f…
Salt Reconstruction in Full Waveform Inversion with a Parametric Level-Set Method
Ajinkya Kadu, Tristan van Leeuwen, Wim A. Mulder
Seismic full-waveform inversion tries to estimate subsurface medium parameters from seismic data. Areas with subsurface salt bodies are of particular interest because they often ha…
Nodal Discontinuous Galerkin Simulations for Reverse-Time Migration on GPU Clusters
Axel Modave, Amik St-Cyr, Wim A. Mulder +1
Improving both accuracy and computational performance of numerical tools is a major challenge for seismic imaging and generally requires specialized implementations to make full us…