Acoustic radiation patterns of the silo music phenomenon

J.R Hernández-Juárez,D.A Serrano,A Medina,A López-Villa,M.A Aguirre,S Luding,L.A Pugnaloni,R Soto

doi:10.1051/epjconf/202124903018

J.R Hernández-Juárez, D.A Serrano + Show 6 more

Open Access

https://doi.org/10.1051/epjconf/202124903018

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Abstract

In this work, we apply the theory of radiation and reception of acoustic waves in the analysis of the acoustic contributions of the silo music phenomenon. The length portion of the silo where the silo music phenomenon occurs is considered a continuous line source. The continuous line source modeled as a simple acoustic source permits the analysis of the acoustic far field, interpreting the polar graphics of the beam patterns of the acoustic contributions. We propose to apply this technique in the silo design to diminish adverse acoustic effects during the discharge process of granular materials. Additionally, we present calculations of the sound pressure level of the silo music phenomenon.

Highlights

One of the most interesting topics in acoustics is the survey of radiation and reception of acoustic waves
Almost null attention has been put on the study of the near/far acoustic field generated by the silo music phenomenon
This work presents a methodology to study the behavior of the radiated acoustic energy due to the acoustic contributions generated by the silo music phenomenon (SMP)

Summary

Introduction

One of the most interesting topics in acoustics is the survey of radiation and reception of acoustic waves. This theory takes the pulsating sphere as a prototype of a simple source that is useful to model the continuous line sources (CLS). Almost null attention has been put on the study of the near/far acoustic field generated by the silo music phenomenon.

The silo music phenomenon as continuous line source

Beam patterns of the silo music

Experimental application

Conclusion and observations