Seminar Details:

LANS Informal Seminar Series
"Code Integration for Large-Scale Systems Simulations: Compressible - Low Mach Number Coupling"

DATE: March 11, 2009

TIME: 15:00:00 - 16:00:00
SPEAKER: Yulia Peet, University of Pierre and Marie Curie, Paris, France
LOCATION: Building 221 Conference Room A261, Argonne National Laboratory

With the advance in performance and capabilities of modern computers, the drive towards large-scale integrated simulations of complex flow systems is growing. The different flow physics in different components of these systems often calls for integration of different solvers. In this talk, we present a computational methodology that we developed for coupling compressible and low Mach number codes, motivated by the necessity to model systems where flow conditions vary substantially - from supersonic to almost stagnating.

We describe the details of implementation on structured overlapping meshes, formulate unsteady interface conditions, validate our choice of interface conditions by comparing numerical errors for different formulations, and show the results of numerical experiments performed on a wide range of steady and unsteady laminar and turbulent problems.


Please send questions or suggestions to Jeffrey Larson: jmlarson at anl dot gov.