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math.NA2024
A potential energy conserving finite element method for turbulent variable density flow: application to glacier-fjord circulation
Lukas Lundgren, Christian Helanow, Jonathan Wiskandt +2
We introduce a continuous Galerkin finite element discretization of the non-hydrostatic Boussinesq approximation of the Navier-Stokes equations, suitable for various applications s…
math.NA2023
Theoretical results on a block preconditioner used in ice-sheet modeling: eigenvalue bounds for singular power-law fluids
Christian Helanow, Josefin Ahlkrona
The properties of a block preconditioner that has been successfully used in finite element simulations of large scale ice-sheet flow is examined. The type of preconditioner, based…