Mohd Saat, Fatimah Al Zahrah and Jaworski, Artur (2013) Oscillatory Flow and Heat Transfer Within Parallel-plate Heat Exchangers of Thermoacoustic Systems. In: World Congress on Engineering 2013, 3-5 July 2013, Imperial College, London.
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Abstract
Oscillatory flows past solid bodies are a feature typical for thermoacoustic systems. Understanding such flows is one of the keys for improving the system performance. This work investigates oscillatory flows around parallel-plate heat exchanger through numerical modeling developed based on the experimental data obtained in-house within a standing-wave thermoacoustic setup. Attention is given to developing a model that can explain the physics of phenomena observed in the experimental work. Four drive ratios (defined as maximum pressure amplitude to mean pressure) were investigated: 0.3%, 0.45%, 0.65% and 0.83%. The suitability of selected turbulence models for predicting the flow phenomena at varied drive ratios has been tested. Discussion of results is based on the velocity profiles and vorticity contours within the flow. Associated heat transfer phenomena are also discussed.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Mechanical Engineering > Department of Thermal Fluids |
| Depositing User: | Pn. Fatimah Al-Zahrah Mohd Sa'at |
| Date Deposited: | 26 May 2014 04:35 |
| Last Modified: | 28 May 2015 04:25 |
| URI: | http://eprints.utem.edu.my/id/eprint/12493 |
| Statistic Details: | View Download Statistic |
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