The acoustic performance of dissipative silencers, including the effects of both a mean flow
in the airway and an induced internal steady flow in the absorbent, are analysed. Finite
element models, based upon the modified Galerkin method, have been derived for the
determination of the noise attenuation of silencers, both by forced response and eigenvalue
analysis. The corresponding computer programs, incorporating subroutines from the NAG
Finite Element library, have been developed. [Continues.]
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.
Association of Commonwealth Universities. British Council.