2 citations · 2 across the 2 of their papers we have counts for
3 papers
Semi matrix-free twogrid shifted Laplacian preconditioner for the Helmholtz equation with near optimal shifts
Daniel Drzisga, Tobias Köppl, Barbara Wohlmuth
Due to its significance in terms of wave phenomena a considerable effort has been put into the design of preconditioners for the Helmholtz equation. One option to derive a precondi…
Modeling and simulation of vascular tumors embedded in evolving capillary networks
Marvin Fritz, Prashant K. Jha, Tobias Köppl +3
In this work, we present a coupled 3D-1D model of solid tumor growth within a dynamically changing vascular network to facilitate realistic simulations of angiogenesis. Additionall…
Fronts in two-phase porous flow problems: effects of hysteresis and dynamic capillarity
Koondanibha Mitra, Tobias Köppl, Cornelis Johannes van Duijn +2
In this work, we study the behaviour of saturation fronts for two phase flow through a long homogeneous porous column. In particular, the model includes hysteresis and dynamic effe…