Heat transfer and pressure drop characteristics in rectangular channels with elliptic pin fins

Endwall heat transfer and pressure drop in rectangular channels with attached and detached circular pin-fin array

“…doi:10.1016/j.ijheatmasstransfer.2008.02.046 regions aside each pin. Although these flow features characterize the flow physics in a pin-fin channel that generalize the endwall heat transfer performances, the HTE effectiveness and pressure drop characteristics also vary with by-pass flows over pin-tips [1,20,24], height-to-diameter ratios of pins [3][4][5]8], shapes [6,11,15,17,19,20,[24][25][26], arrangements [2,7,10,[12][13][14]18,19,[22][23][24], materials [14] and the three-dimensionality [8,9,13,15,16] of pins as well as the orientation of pin-array in the cross flow [6,27]. Theses geometric factors are sometime interrelated to affect the endwall heat transfer performances and the pressure drops of pin-fin channels.…”

Interrelation between pin length and heat exchanger performance

“…In order to analyse the mechanism behind effective heat transfer but also the relatively high pressure drop associated with pin fins, different authors such as Theoclitus [5], Sparrow and Ramsey [6] and Sara et al [7] carried out basic research work focused on such aspects. There have also been noted some contributions concerning different shapes of pin fin cross-section such as Chen et al [8] and Li et al [9]. An extensive numerical investigation of influence of different pin cross section, in thermal and fluid dynamic characteristics of in-inline and staggered pin fin arrays is provided by Sahiti at al [10].…”

Computer-Aided Simulations of Convective Heat Transfer in a Wedged Channel with Pin-Fins at Various Outlet Arrangements and Nonuniform Diameters

“…The influence of pin-fin cross-section shapes has been experimentally studied on rectangle channel with elliptic shape by Li et al [1], with square shape by, respectively, Şara [2] and Jeng and Tzeng [3]. Sahiti et al [4] numerically simulate the pressure drop and heat transfer of rectangle channels with a NACA profile, a profile having a drop shape, a lancet profile, an elliptic profile cross-section pin-fins.…”