Recent Advances in the SEM for Turbulent Flow Simulations

Event Sponsor: 
Mathmatics and Computer Science Division Seminar - LANS
Start Date: 
Jul 26 2019 - 10:30am
Building/Room: 
Building 240/Room 1404-1405
Location: 
Argonne National Laboratory
Speaker(s): 
Paul Fischer
Speaker(s) Title: 
Argonne National Laboratory, MCS & University of Illinois - Urbana Champaign
We present recent developments in application of the spectral element method (SEM) for the simulation of turbulent flows at petascale and beyond. We begin with a brief overview of the SEM as implemented in Nek5000.  We then discuss recent algorithmic advances, including:
 
- Efficient FEM-based preconditioners
- Nonconforming overlapping domain decomposition
- Multirate timestepping for for the incompressible Navier-Stokes equations
- SEM-based compressible Navier-Stokes solutions
- Nonlinear stabilization
- High-performance GPU implementations
- Reduced-order models
Miscellaneous Information: 
This seminar will be streamed. https://anlpress.cels.anl.gov/cels-seminars/
Google Calendar: https://goo.gl/L7uhjK