Turbulent flow and heat transfer behaviors in a circular tube fitted with multiple V–baffles

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Published: May 22, 2023
Keywords:
Multiple V–baffle Turbulent flow Heat transfer Circular tube

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Teerapat Chompookham
Heat Pipe and Thermal Tool Design Research Unit (HTDR), Faculty of Engineering, Mahasarakham University, Maha Sarakham 44150, Thailand
Pongjet Promvonge
Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
Sompol Skullong
Energy Systems Research Group and ATAE Research Unit, Department of Mechanical Engineering, Faculty of Engineering at Sriracha, Kasetsart University Sriracha Campus, Chonburi 20230, Thailand
Narin Siriwan
Heat Pipe and Thermal Tool Design Research Unit (HTDR), Faculty of Engineering, Mahasarakham University, Maha Sarakham 44150, Thailand
Bopit Bubphachot
Heat Pipe and Thermal Tool Design Research Unit (HTDR), Faculty of Engineering, Mahasarakham University, Maha Sarakham 44150, Thailand
Kittinan Wansasueb
Electronics for Agriculture Research Unit, Faculty of Engineering, Mahasarakham University, Maha Sarakham 44150, Thailand
Pitak Promthaisong
Heat Pipe and Thermal Tool Design Research Unit (HTDR), Faculty of Engineering, Mahasarakham University, Maha Sarakham 44150, Thailand

Abstract

This article presents turbulent flow patterns and thermal behaviors in a circular tube mounted with 30° multiple V–baffles. The influences of V–baffle numbers (N) of 2, 3 and 4 with pitch ratios (PR) of 1.0, 1.5 and 2.0 for Reynolds number (Re) between 3000 and 20,000 were investigated numerically at a fixed blockage ratio, BR = 0.05. These simulated results were proposed in four sections: numerical validations, flow and thermal characteristics and thermal performance. It was visible that the multiple V–baffles can help induce the impinging jet leading to disrupting the boundary layer, increasing the fluid mixing, and then enhancing the heat transfer above the plain tube alone. The rises of the number of V–baffles and the lower baffle pitch length led to raising the heat transfer and friction loss. The maximum thermal performance was obtained around 2.06 at N = 4, PR = 1.0 and lower Re.

Article Details

How to Cite
Chompookham, T. ., Promvonge, P., Skullong, S., Siriwan, N. ., Bubphachot, B., Wansasueb, K., & Promthaisong, P. . (2023). Turbulent flow and heat transfer behaviors in a circular tube fitted with multiple V–baffles. Engineering and Applied Science Research, 50(3), 251–261. Retrieved from https://ph01.tci-thaijo.org/index.php/easr/article/view/251048
Issue
Vol. 50 No. 3 (2023)
Section
ORIGINAL RESEARCH
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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