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Acoustic Eaton lens array and its fluid application

Kim, Sang-Hoon; Sy, Phamvan; Das, Mukunda P


A principle of an acoustic Eaton lens array and its application as a removable tsunami wall is proposed theoretically. The lenses are made of expandable rubber pillars or balloons and create a stop-band by rotating the incoming tsunami wave and reduce the pressure by canceling each other. The diameter of each lens is larger than the wavelength of the tsunami near the coast, that is, order of a kilometer. The impedance matching on the border of the lenses results in a little reflection. Before a...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Modern Physics Letters B
DOI: 10.1142/S0217984917500816


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