Abstract
We formulate the Helmholz problem as an exact conrollability problem for
the time-dependent wave equation. The problem is then discretized in space
domain with spectral elements leading to high accuracy and diagonal mass
matrices. After discretization, exact controllability problem is reformulated
as a least-squares problem, which is solved by conjugate gradient method. We
illustrate the method with some numerical experiments on an acoustic
scattering simulation.
| Original language | English |
|---|---|
| Pages (from-to) | 121-124 |
| Journal | Journal of Structural Mechanics |
| Volume | 38 |
| Issue number | 3 |
| Publication status | Published - 2005 |
| MoE publication type | A4 Article in a conference publication |