CFD-assisted regenerator analysis: application to thermoacoustic system

Mohd Saat, Fatimah Al Zahrah and Zhibin, Yu and Jaworski, Artur (2011) CFD-assisted regenerator analysis: application to thermoacoustic system. In: The 23rd IIR International Congress of Refrigeration, 21-26 August 2011, Prague, Czech Republic.

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Thermoacoustic devices have been of considerable research interest in the last few decades due to their simplicity and the environmentally friendly operation. This paper investigates the regenerator, forming the core of a thermoacoustic device, where the thermoacoustic effect takes place. A two-dimensional axis- symmetrical computational fluid dynamic (CFD) model of a thermoacoustic effect in a travelling-wave case has been developed. The boundary conditions were imposed according to the measured oscillating pressure and the temperature gradient developed across the regenerator in a thermoacoustic test rig. The simulation was validated by comparing the resulting pressure with that measured experimentally at a number of locations. A friction factor correlation was derived for the CFD-assisted model and compared with the experimental data available. 1

Item Type: Conference or Workshop Item (Keynote)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Mechanical Engineering > Department of Thermal Fluids
Depositing User: Pn. Fatimah Al-Zahrah Mohd Sa'at
Date Deposited: 26 May 2014 04:27
Last Modified: 28 May 2015 04:25
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