FEM@LLNL Seminar Series

We are happy to announce a new FEM@LLNL seminar series, starting in 2022, which will focus on finite element research and applications talks of interest to the MFEM community. We have lined up some excellent speakers for our first year and plan to keep adding more.

Sign-Up

Fill in this form to sign-up for future FEM@LLNL seminar announcements.

Next Talk

Guglielmo Scovazzi (Duke University)

The Shifted Boundary Method: An Immersed Approach for Computational Mechanics
10am PDT, January 20, 2022

Immersed/embedded//unfitted boundary methods obviate the need for continual re-meshing in many applications involving rapid prototyping and design. Unfortunately, many finite element embedded boundary methods are also difficult to implement due to the need to perform complex cell cutting operations at boundaries, and the consequences that these operations may have on the overall conditioning of the ensuing algebraic problems. We present a new, stable, and simple embedded boundary method, named “shifted boundary method” (SBM), which eliminates the need to perform cell cutting. Boundary conditions are imposed on a surrogate discrete boundary, lying on the interior of the true boundary interface. We then construct appropriate field extension operators, by way of Taylor expansions, with the purpose of preserving accuracy when imposing the boundary conditions. We demonstrate the SBM on large-scale solid and fracture mechanics problems; thermomechanics problems; porous media flow problems; incompressible flow problems governed by the Navier-Stokes equations (also including free surfaces); and problems governed by hyperbolic conservation laws.

 

Future Talks

 

Robert Carson (LLNL)

An overview of ExaConstit and its use in the ExaAM project
February 1, 2022

Raphael Zanelle (UT Austin)

Axisymmetric MFEM-based solvers for the compressible Navier-Stokes equations and other problems
March 1, 2022

Tamas Hovarth (Oakland University)

Space-Time Hybridizable Discontinuous Galerkin with MFEM
March 29, 2022

Robert Chodi (UIUC)

CHyPS: An MFEM-Based Material Response Solver for Hypersonic Thermal Protection Systems
April 26, 2022

Mike Puso (LLNL)

Topics in immersed boundary and contact interface methods
May 24, 2022

Paul Fischer (UIUC)

Outlook for Exascale Fluid Dynamics Simulations
June 21, 2022

Victoria Korchogova (Russian Academy of Sciences)

On Using of AMR Algorithms for Solving Gas Dynamics Problems by RKDG Method
July 19, 2022

Dennis Ogiermann (University of Bochum)

Computing meets Cardiology: Making heart simulations fast and accurate
September 13, 2022

Clark Dohrmann (SNL)

High-Order Finite Elements and Applications to Elastic Wave Propagation
October 11, 2022

Garth Wells (University of Cambridge)

TBD
November 8, 2022