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 |
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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 |