Thursday,
February 17, 2000, 12:30 p.m. in GWC Room 604
Frank Tse
Department of Mathematics
A practical method to reduce numerical disturbance arising from
spectral domain decomposition
Abstract
Spectral domain decomposition method is designed for problems with
complex geometry. However, the subdomain interfaces can cause much numerical
disturbance, for example, when calculating fluid flow with high Reynolds number.
This is easily overcome by creating an auxillary set of subdomains in addition
to the original set of subdomains. The derivatives are carried out through a
combination of the two sets of subdomains. The resulting algorithm can maintain
spectral accuracy for simple problem and converge for high Reynolds number flow.
Some simulation results by using the method will also be shown.
