Seminar Details
2005-12-08 (14.00 pm) : The use of iterative linear system solvers for vibro and aero-acoustic simulations
At Auditoire Euler
Organized by Mathematical Engineering
Speaker :
Karl Meerbergen (Free Field Technologies (LLN))
Abstract :
Vibrations and more particularly, acoustics, are often modelized by finite
elements. This gives rise to large sparse algebraic linear systems of
equations. Traditionally, direct methods are used for reasons of robustness.
The major drawbacks of direct methods are the memory consumption and
execution times for 3D models. Iterative methods are often much cheaper, but
are not guaranteed to converge. In this talk, we present numerical results
for industrial applications that show how much we can gain with commonly
used preconditioned Krylov methods.