Dr. Julian Kollermeier, from Freie Universität Berlin, invites you to the seminar on “Model adaptive simulations of rarefied gases using hyperbolic moment models."
 
Abstract:
Rarefied gases occur in many applications like atmospheric entry or microelectromechanical systems (MEMS). Simulation of rarefied gases require dedicated and more complicated models to account for non-equilibrium effects, which cannot be accurately described by the standard Euler or Navier-Stokes equations.
In this talk, I will explain several possibilities to reduce runtime of such simulations by means of model adaptivity, i.e. refinement of the computational model only in those regions of the flow field where standard models fail. I will outline a new adaptive and hierarchical model based on recently derived hyperbolic moment equations for rarefied gases and compare the different concepts.

Short bio of Dr. Julian Köllermeier:
2011 Short Training Program at VKI
2013 M.Sc. in Computational Engineering Science, RWTH Aachen University
2017 Ph.D. in Applied Mathematics, RWTH Aachen University since 2017 Postdoctoral researcher at Freie Universität Berlin

Location : von Karman Institute, Waterloosesteenweg 72, 1640 Sint-Genesius-Rode, Florine Room