Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems

Fatimah A.Z.Mohd Saat, Artur J. Jaworski

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

2 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationProceedings of the World Congress on Engineering 2013, WCE 2013
Pages1699-1704
Number of pages6
Volume3 LNECS
Publication statusPublished - 25 Nov 2013
Externally publishedYes
EventInternational Association of Engineers World Congress on Engineering - Imperial College London, London, United Kingdom
Duration: 3 Jul 20135 Jul 2013
http://www.iaeng.org/WCE2013/ICAEM2013.html (Link to Conference Details )

Conference

ConferenceInternational Association of Engineers World Congress on Engineering
Abbreviated titleWCE 2013
CountryUnited Kingdom
CityLondon
Period3/07/135/07/13
Internet address

Fingerprint

Thermoacoustics
Heat exchangers
Heat transfer
Vorticity
Turbulence models
Physics

Cite this

Saat, F. A. Z. M., & Jaworski, A. J. (2013). Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems. In Proceedings of the World Congress on Engineering 2013, WCE 2013 (Vol. 3 LNECS, pp. 1699-1704)
Saat, Fatimah A.Z.Mohd ; Jaworski, Artur J. / Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems. Proceedings of the World Congress on Engineering 2013, WCE 2013. Vol. 3 LNECS 2013. pp. 1699-1704
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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.",
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Saat, FAZM & Jaworski, AJ 2013, Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems. in Proceedings of the World Congress on Engineering 2013, WCE 2013. vol. 3 LNECS, pp. 1699-1704, International Association of Engineers World Congress on Engineering, London, United Kingdom, 3/07/13.

Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems. / Saat, Fatimah A.Z.Mohd; Jaworski, Artur J.

Proceedings of the World Congress on Engineering 2013, WCE 2013. Vol. 3 LNECS 2013. p. 1699-1704.

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

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T1 - Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems

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N2 - 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.

AB - 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.

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Saat FAZM, Jaworski AJ. Oscillatory flow and heat transfer within parallel-plate heat exchangers of thermoacoustic systems. In Proceedings of the World Congress on Engineering 2013, WCE 2013. Vol. 3 LNECS. 2013. p. 1699-1704