Numerical simulation for turbulent flow in a tube with combined swirl flow device considering nanofluid exergy loss

Ahmad Shafee, A. Arabkoohsar, M. Sheikholeslami, M. Jafaryar, M. Ayani, Trung Nguyen-Thoi, D. Baba Basha, I. Tlili and Zhixiong Li

Physica A: Statistical Mechanics and its Applications, 2020, vol. 542, issue C

Abstract: Helical turbulator has been adopted in this article, to enhance the convective flow within a pipe. Homogeneousmodel was carried out for nanomaterial modeling. The Reynolds number (Re) and width of turbulator (b) vary from 5000 to 15000 and 5 to 15mm, respectively. Copper oxide nanoparticles were considered as an additive in to pure carrier fluid to gain better thermal behavior. Furthermore, exergy loss distributions for different cases have been reported. Outputs indicate that disturbance of the boundary layer enhances with rise of b. Mixing of core nanofluid flow and boundary layer enhances with augment of width of turbulator.

Keywords: Numerical method; Forced convection; Nanofluid; Exergy; New turbulator; FVM (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:542:y:2020:i:c:s0378437119312543

DOI: 10.1016/j.physa.2019.122161

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