CFD simulation on the performance of twin thermoacoustic prime mover for various resonator lengths and operating pressures

Hariharan, NM and Arun, S and Sivashanmugam, P and Kasthurirengan, S (2018) CFD simulation on the performance of twin thermoacoustic prime mover for various resonator lengths and operating pressures. In: Heat Transfer - Asian Research, 47 (2). pp. 337-346.

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Abstract

The main objective of the present investigation is to analyze the effect of resonator length and different working pressures on the performance of a twin thermoacoustic prime mover, which was measured in terms of frequency and amplitude of the oscillations using the computational fluid dynamics tool FLUENT 6.3. The simulation was carried out for different resonator lengths such as 0.5, 0.6, 0.8, 1.1, and 1.4Â m using nitrogen as a working fluid for various operating pressures such as 1, 2, 3, 4, and 5Â bar. It was observed from the results that the pressure amplitude increases with an increase in resonator length and that the output frequency decreases with an increase in resonator length for a fixed operating pressure. For a constant resonator length, the increase in operating pressure has little influence on output frequency, and the pressure amplitude also increases. The results obtained were found to be in accordance with experimental works published by Hariharan and colleagues.

Item Type:	Journal Article
Publication:	Heat Transfer - Asian Research
Publisher:	John Wiley and Sons Inc.
Additional Information:	The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords:	Acoustic equipment; Resonators; Thermoacoustics; Thermodynamics, CFD simulations; frequency; Operating pressure; Pressure amplitudes; Resonator length; twin TAPM, Computational fluid dynamics
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	10 Aug 2022 04:46
Last Modified:	10 Aug 2022 04:46
URI:	https://eprints.iisc.ac.in/id/eprint/75640

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