Computational Science & Engineering Seminar - Sander Rhebergen - Exactly divergence-free finite element methods for incompressible flows

Description

Speaker: Sander Rhebergen (University of Waterloo)

Webpage: https://uwaterloo.ca/applied-mathematics/people-profiles/sander-rhebergen

Title: Exactly divergence-free finite element methods for incompressible flows

Abstract: Pressure-robust finite element discretizations have proven to be excellent discretization methods for incompressible flows. Pressure-robust discretizations are particularly interesting because the accuracy of the discrete velocity solution does not deteriorate as the Reynolds number is increased. In this talk, I will discuss our work on exactly divergence-free hybridizable discontinuous Galerkin (HDG) methods for incompressible flows. I will present the HDG method for the Stokes and Navier-Stokes problems and, through theory and numerical examples, show that the HDG method is pressure-robust. I will furthermore discuss a space-time extension of the HDG method for the solution of the Navier-Stokes equations on time-dependent domains.

Location: Virtual 

Meeting information: https://mcmaster.zoom.us/j/96796982860?pwd=R0RBOUZKcjBpaEhHY1FYa0FCTDh6UT09

Meeting ID: 967 9698 2860

Passcode: 622199

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