Thursday, July 4, 2019 - 18:00 to 19:00

Berliner Colloquium für wissenschaftliche Visualisierung

Donnerstag, 4. Juli 2019, 18:00 Uhr
Zuse-Institut Berlin (ZIB)
Takustrasse 7, 14195 Berlin
Großer Hörsaal (Rundbau, Erdgeschoss)

Prof. Daniele Panozzo,

New York University, Courant Institute of Mathematical Sciences

The numerical solution of partial differential equations (PDE) is ubiquitous in engineering and scientific computing. Ideally, a PDE solver should be a “black box”: the user provides as input the domain boundary, boundary conditions, and the governing equations, and the code returns an evaluator that can compute the value of the solution at any point of the input domain. This is surprisingly far from being the case for all existing open-source or commercial software, despite the research efforts in this direction and the large academic and industrial interest. To a large extent, this is due to treating meshing and FEM basis construction as two disjoint problems.

I will present an integrated pipeline, considering meshing and element design as a single challenge, that makes the tradeoff between mesh quality and element complexity/cost local, instead of making an a priori decision for the whole pipeline. I will demonstrate that tackling the two problems jointly offers many advantages, and that a fully black-box meshing and analysis solution is already possible for heat transfer and elasticity problems.