Experimental and numerical exploration of the influence of the shape of pin-fins on the friction factor of a finned tube


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In this study, the aerodynamic characteristics of tubes with circular and drop-shaped pin-fins were investigated using both experimental and numerical methods across a range of Reynolds numbers from 7030 to 35170. Velocity and pressure contours were de-picted and discussed. The findings revealed that the minimum friction factor for finned tubes are achieved for tubes with drop-shaped pin-fins, being approximately (1.36-7.95)% lower than those for circular pin-fins. The study also presents correlations that enable the estimation of the friction factor for finned tubes.

drop-shaped tube, circular tube, fin, finned tube, heat exchanger, friction factor, experimental study, numerical study, Fluent

DOI: http://doi.org/10.33257/PhChGD.25.3.1101


Volume 25, issue 3, 2024 year


Экспериментальное и численное исследование влияния формы шипов на коэффициент аэродинамического сопротивления оребренной трубы

В данном исследовании были изучены характеристики аэродинамики труб с круглым и каплевидным шипованным оребрением как экспериментальным, так и численным методами в диапазоне чисел Рейнольдса 7030 - 35170. Были получены и описаны контуры скорости и давления. Результаты показали, что минимальные значения коэффициента сопротивления для шипованных труб достигаются у труб с каплевидным шипованным оребрением и составляют на (1,36-7,95)% меньше, чем у труб с цилиндрическим шипованным оребрением. В работе представлены зависимости, которые позволяют оценить коэффициент аэродинамического сопротивления для оребренных труб.

каплевидная труба, круглая труба, ребро, оребренная труба, теплообменник, коэффициент аэродинамического сопротивления, экспериментальное исследование, численное исследование, CFD, Fluent

DOI: http://doi.org/10.33257/PhChGD.25.3.1101


Volume 25, issue 3, 2024 year



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