Propagation Of Pressure Waves In The Vicinity Of A Rigid Inclusion
Submerged In A Channel Bounded By An Elastic Half-space
Author(s)
A. Tadeu, L. Godinho & J. António
Abstract
Propagation of pressure waves in the vicinity of
a rigid inclusion submerged in a channel
bounded by an elastic half-space
A. Tadeu, L. Godinho & J . Antonio
Department of Civil Engineering
University of Coimbra, Portugal
Abstract
The present paper computes the pressure field generated by spatially-sinusoidal
harmonic pressure line sources in the vicinity of a rigid inclusion submerged in a
fluid channel, bounded by an elastic half-space. The formulation of the problem is
performed in the frequency domain. Time solutions are obtained by applying
inverse Fourier transforms.
The solution is computed using a 2-112-D Boundary Element Method (BEM)
model. Only the surface of the rigid inclusion is discretized with boundary
elements, since the Green's functions used take the presence of the free surface
and of the fluidlelastic interface floor into account.
Computer simulations are performed for a fluid waveguide with a submerged
rigid inclusion. The time domain responses are presented and discussed
Keywords
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