English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The effect of the presence of a finite impedance surface on the wavepropagation properties of a two-dimensional periodic array of rigid cylinderswith their axes perpendicular to the surface is both numerically andexperimentally analyzed in this work. In this realistic situation both theincident and the scattered waves interact with these two elements, the surfaceand the array. The interaction between the excess attenuation effect, due tothe destructive interference produced by the superposition of the incident waveand the reflected one by the surface, and the bandgap, due to the periodicityof the array, is fundamental for the design of devices to control thetransmission of waves based on periodic arrays. The most obvious application isperhaps the design of Sonic Crystals Noise Barriers. Two different finiteimpedance surfaces have been analyzed in the work in order to observe thedependence of the wave propagation properties on the impedance of the surface.

Analysis of the wave propagation properties of a periodic array of rigid cylinders perpendicular to a finite impedance surface