Large Deformation and Contact in Fluid-Structure Interactions
In this talk we address the following fundamental question: what happens if an elastic ball is falling in a container with a viscous fluid towards a rigid wall on the bottom? Will it come to contact? Or will there always remain a thin fluid film between wall and bottom? Will the ball bounce off? Or will the ball come to rest and stick?

We start by giving an overview on various results on this topic, computationally, theoretically and experimentally. Then in a second part we numerically investigate this challenging problem.

The possible contact between ball and boundary is a fundamental difficulty for established discretization schemes as it involves topology changes in the domain. For describing the interaction problem between elastic solid and fluid we shortly introduce the ALE approach and discuss its shortcomings in terms of modeling contact. Then, we introduce an alternative Eulerian approach that is well suited for contact problems. This Eulerian approach however brings along new difficulties with respect to discretization.
Lecturer:
Prof. Dr. Thomas Richter, Universität Magdeburg
Dates:
Fr. 12.01.2018, 13:00 c.t., G29-335
Recent news:
19.01.2018

Research Seminar Announcement

The Visual Computing research seminar with Prof. Dr. Jörn Kohlhammer from Fraunhofer IGD and TU Darmstadt on Friday, 19.01. had to be cancelled due to the storm. The talk will be moved to the summer term instead.

To the overview…