National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
The effect of irregular interfaces on the BDDC method for the Navier-Stokes equations
Hanek, M. ; Šístek, Jakub ; Burda, P.
We investigate the effect of interface irregularity on the convergence of the BDDC method for Navier-Stokes equations. A benchmark problem of a sequence of contracting channels is proposed to evaluate the robustness of the iterative solver with respect to element aspect ratios at the interface. Partitioners based on graph of the mesh and the geometry of the domain are compared. It is shown, that the convergence is significantly improved by avoiding irregular interfaces for the benchmark problem as well as for an industrial problem of oil flow in hydrostatic bearing.

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