4 papers
Effective viscosity closures for dense suspensions in CSP systems via lubrication-enhanced DNS and numerical viscometry
Raphael Münster, Otto Mierka, Dmitri Kuzmin +1
Dense particle suspensions are promising candidates for next-generation Concentrated Solar Power (CSP) receivers, enabling operating temperatures above 800 degrees C. However, accu…
A Chimera domain decomposition method with weak Dirichlet-Robin coupling for finite element simulation of particulate flows
Raphael Münster, Otto Mierka, Dmitri Kuzmin +1
We introduce a new multimesh finite element method for direct numerical simulation of incompressible particulate flows. The proposed approach falls into the category of overlapping…
Residual stresses couple microscopic and macroscopic scales
Sebastian Steinhäuser, Timm Treskatis, Stefan Turek +1
We show how residual stresses emerge in a visco-elastic material as a signature of its past flow history, through an interplay between flow-modified microscopic relaxation and macr…
Exa-Dune -- Flexible PDE Solvers, Numerical Methods and Applications
Peter Bastian, Mirco Altenbernd, Nils-Arne Dreier +13
In the Exa-Dune project we have developed, implemented and optimised numerical algorithms and software for the scalable solution of partial differential equations (PDEs) on future…