198 citations · 1k across the 73 of their papers we have counts for
7 papers · 2 filters
Testing a coupled hydro-thermo-chemo-geomechanical model for gas hydrate bearing sediments using triaxial compression lab experiments
Shubhangi Gupta, Christian Deusner, Matthias Haeckel +2
Natural gas hydrates are considered a potential resource for gas production on industrial scales. Gas hydrates contribute to the strength and stiffness of the hydrate-bearing sedim…
Solution Techniques for the Stokes System: A priori and a posteriori modifications, resilient algorithms
Markus Huber, Lorenz John, Petra Pustejovska +3
This article proposes modifications to standard low order finite element approximations of the Stokes system with the goal of improving both the approximation quality and the paral…
Multi-rate time stepping schemes for hydro-geomechanical model for subsurface methane hydrate reservoirs
Shubhangi Gupta, Barbara I. Wohlmuth, Rainer Helmig
We present an extrapolation-based semi-implicit multirate time stepping (MRT) scheme and a compound-fast MRT scheme for a naturally partitioned, multi-time-scale hydro-geomechanica…
Non-Isothermal, Multi-phase, Multi-component Flows through Deformable Methane Hydrate Reservoirs
Shubhangi Gupta, Rainer Helmig, Barbara Wohlmuth
We present a hydro-geomechanical model for subsurface methane hydrate systems. Our model considers kinetic hydrate phase change and non-isothermal, multi-phase, multi-component flo…
Simultaneous Reduced Basis Approximation of Parameterized Elliptic Eigenvalue Problems
Thomas Horger, Barbara Wohlmuth, Thomas Dickopf
The focus is on a model reduction framework for parameterized elliptic eigenvalue problems by a reduced basis method. In contrast to the standard single output case, one is interes…
The Influence of Quadrature Errors on Isogeometric Mortar Methods
Ericka Brivadis, Annalisa Buffa, Barbara Wohlmuth +1
Mortar methods have recently been shown to be well suited for isogeometric analysis. We review the recent mathematical analysis and then investigate the variational crime introduce…