Open AccessNumerical analysis of heat transfer and fluid flow around circular and non-circular tubes
Author(s) -
Rawad Deeb,
D V Sidenkov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2088/1/012008
Subject(s) - pressure drop , mechanics , heat transfer , reynolds number , turbulence , tube (container) , computational fluid dynamics , fluent , materials science , hydraulic diameter , ellipse , heat transfer enhancement , physics , composite material , geometry , mathematics
A two-dimensional study of turbulent flow and heat transfer in a channel with circular and non-circular tubes has been carried out using the CFD Fluent software package. Four non-circular tubes were investigated: flat, ellipse, cam, and drop-shaped. Reynolds number varied in the range of 7300 ≤ Re ≤ 14600. All tubes were investigated under similar operating conditions. Local heat transfer, pressure, and friction coefficients over a surface of the tubes were presented. The thermal-hydraulic performance was used to estimate the efficiency of the non-circular tubes. The results indicated that the drop-shaped tube has the best thermal-hydraulic performance, which was about 5.6, 2.6, 1.7, 1.3 times higher than that of the circular, flat, ellipse, cam tube, respectively.