Nonlinear modeling of thermoacoustic systems

J.A. de Jong, Y.H. Wijnant, A. de Boer, D. Wilcox

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

Thermoacoustic systems convert energy from heat to acoustic power and vice versa. These systems have commercial interest due to the high potential efficiency and low number of moving parts. To numerically predict the performance of a thermoacoustic device inherent nonlinearities in the system, such as thermoacoustic streaming and generation of harmonics need to be taken into account. We present a nonlinear frequency domain method with which these nonlinearities in thermoacoustic systems are modeled in a computationally efficient manner. Using this method, the nonlinear periodic steady state of a thermoacoustic engine can directly be computed, without computing the long initial transient of the system. In this publication, the developed method is applied to compute the periodic steady state of an experimental standing wave engine. The results obtained match well with experimental data.
Original languageEnglish
Title of host publicationProceedings of the 10th European Conference on Noise Control, Euronoise 2015
EditorsC. Glorieux
PublisherEuropean Acoustics Association
Pages527-531
Publication statusPublished - 31 May 2015
Event10th European Congress and Exposition on Noise Control Engineering, EuroNoise 2015 - Maastricht, Netherlands
Duration: 31 May 20153 Jun 2015
Conference number: 10

Publication series

NameProceedings of the European Conference on Noise Control (EURONOISE)
PublisherEuropean Acoustics Association
Volume2015
ISSN (Print)2226-5147

Conference

Conference10th European Congress and Exposition on Noise Control Engineering, EuroNoise 2015
Abbreviated titleEuroNoinse
CountryNetherlands
CityMaastricht
Period31/05/153/06/15

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