Experimental study of sound attenuation by layers of water droplets

Autores UPV
Año
CONGRESO Experimental study of sound attenuation by layers of water droplets

Abstract

Water-droplet suspension has been used as primary noise attenuation mechanism in the context of launching of space vehicles, where other attenuation mechanisms are hardly applicable. In this work, we present an experimental study of the attenuation properties of the sound transmitted through a multilayer structure of a saturated gas-vapor-droplet suspension. For this purpose, an experimental setup including a water injection system has been designed. To characterize the acoustic properties of the system, the dependence of the transmitted spectrum with the most significant parameters such as the droplet size, the spacing between nozzles and the pressure and flow of water in the system was measured.