Recent simulation techniques of viscous and thermal losses of sound waves in fluids and their applications in the micro-scale

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Abstract

In classical acoustics small devices in the scale of micrometers such as transducers, couplers or hearing aids are designed b experimentation. In the last 15 years or so, new numerical tools based on the Finite Element Method (FEM) and the Boundary Element Method describe sound fields with viscous and thermal losses. Creating numerical models of the acoustics of small devices is now possible, including not only losses, but also mechanical interaction and other effects. This new insight phenomena in small structures and can lead to new designs that would have been difficult or impossible otherwise. This paper gives an overview of numerical tools applied to acoustic viscous and thermal losses, showing the performance of these tools. These issues, along with comments about possible future developments are brought up for discussion.
Original languageEnglish
Title of host publicationProceedings of NOVEM 2015
Number of pages9
Publication date2015
Article number48944
Publication statusPublished - 2015
EventNoise and vibration Emerging Technology 2015 - Excelsior Hotel, Dubrovnik, Croatia
Duration: 13 Apr 201515 Apr 2015

Conference

ConferenceNoise and vibration Emerging Technology 2015
LocationExcelsior Hotel
CountryCroatia
CityDubrovnik
Period13/04/201515/04/2015

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