THERMAL SCIENCE

International Scientific Journal

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Zuoyi Chen

,

Lizhi Zhang

,

Han Song

INVESTIGATING THE IMPACTS OF INCLUDED ANGLES ON FLOW AND HEAT TRANSFER IN CROSS-CORRUGATED TRIANGULAR DUCTS WITH FIELD SYNERGY PRINCIPLE

ABSTRACT
Included angles (α) have vital effect on the flow and heat transfer in cross-corrugated triangular ducts. The friction factor and Nusselt number were estimated at different Reynolds numbers from both experiments and simulations. Results show that the flow in the duck with α=90 has the largest friction factor and Nusselt number. However, the included angle influences the flow and heat transfer in cross-corrugated triangular ducts in different ways. The field synergy principle was used to explore the mechanism of the different impacts of the included angle. Results show that the flow in the cross-corrugated triangular duct with α=90o has the smallest domain averaged included angle (βm), which implies the best synergy performance. The results of the field synergy principle were also validated by analyzing the performance evaluation criterion and studying the velocity vector and temperature distributions.
KEYWORDS
cross corrugated triangular channel, included angle, field synergy principle
PAPER SUBMITTED: 2011-06-28
PAPER REVISED: 2011-08-22
PAPER ACCEPTED: 2011-08-29
DOI REFERENCE: https://doi.org/10.2298/TSCI110628127C
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 3, PAGES [823 - 832]
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Investigating the impacts of included angles on flow and heat transfer in cross-corrugated triangular ducts with field synergy principle

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence