Seminars & Events

Mathematics and Computer Science Division Seminar
"Parallel Multi-block Adaptive Grid Generation For Flow Calculations"

DATE: March 17, 2009
TIME: 10:30 AM - 11:30 AM
SPEAKER: Hee-Kwon Jeong, Westminster Theological Seminary
LOCATION: Bldg: 221, Conference Room A216, Argonne National Laboratory
HOST: Tim Tautges

Description:
The Parallel Multi-block Adaptive Grid generation (PMAG) algorithm has been designed to handle a general multi-block topology. The algorithm is designed to adapt a multi-block grid concurrently with each block solved in an individual process. These processes can be run on a single parallel machine or distribution over a network of workstations. MPI is used as the message passing interface. Grid adaption in PMAG is based on the weight functions. These weight functions have demonstrated the capacity to detect shocks of differing strengths, primary and secondary vortices, and shear layers adequately. A simple tri-diagonal solver is used for generating the elliptic grids. PMAG is designed to allow boundary point movement by defining the boundaries as NURBS surfaces. This guarantees that the geometric definition is preserved accurately. PMAG is effectively demonstrated in application to realistic cases involving chemically reacting species and flow involving hypersonic flows and viscous boundary layers.

Save the event to your calendar [schedule.ics]