Applied Computational Mathematics Division


Up

Preconditioning Strategies for Models of Incompressible Flow

Howard Elman
University of Maryland, Department of Computer Science; and University of Maryland Institute for Advanced Computer Studies

Monday, March 15, 2004 15:00-16:00,
NIST North (820), Room 145
Gaithersburg
Monday, March 15, 2004 13:00-14:00,
Room 4550
Boulder

Abstract: We describe some new preconditioning strategies for handling the algebraic systems of equations that arise from discretization of the incompressible Navier-Stokes equations. We show how these approaches relate to classical techniques such as projection methods and SIMPLE, show how they adapt in a straightforward manner to decisions on implicit or explicit time discretization, and demonstrate their effectiveness on a collection of benchmark problems.

Speaker Bio: Howard Elman is Professor of Computer Science at the University of Maryland. He received his PhD from Yale University in 1982. He has been at Maryland since 1985 and has had visiting appointments at Stanford University, University of Manchester Institute of Science and Technology, and Oxford University. His research interests include algorithms for computational fluid dynamics, discretization and solution algorithms for partial differential equations, and sparse matrix methods. He is a member of SIAM and AMS and is currently Editor-in-Chief of SIAM Journal on Scientific Computing.

Presentation Slides: PDF

Contact: P. M. Ketcham

Note: Visitors from outside NIST must contact Robin Bickel; (301) 975-3668; at least 24 hours in advance.