Numerical computation of flow and heat transfer in finned and unfinned tube banks

摘要: Abstract A finite volume numerical scheme is utilized to predict fluid flow and heat transfer characteristics in inline tube banks. The effect of equipping the tubes with longitudinal fins on pressure drop studied. governing equations for are numerically solved, assumption periodic, fully developed flow. methodology utilizes stepped boundary technique approximate surface. maintained at a constant temperature, calculations carried out laminar large range Reynolds Prandtl numbers. results unfinned case compared previously published experimental data. agree well measurements. Representative finned indicate, surprisingly, decrease rate, small changes drop, as result finning. rate probably occurs because placed stagnation regions front rear tubes, thus do not increase transfer.