Abstract
Acoustic scattering from a submerged cylindrical shell is experimentally investigated from the viewpoint of energy flow. Acoustic and structural intensities, which respectively indicate acoustic and vibrational energy flows, are obtained by processing data from near-field acoustical holography. Both acoustic and structural intensities of the scattering wave are treated by using a radiation propagator. An incident wave propagator is also introduced to measure both acoustic and structural intensities of the incident wave from an external source. The interrelationship between structural and acoustic energy flows of the present scattering problem is examined by comparing experimental and simulated results.
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