An experimental study of flow friction and heat transfer in wavy microchannels with rectangular cross section

Investigation of fluid flow and heat transfer in wavy micro-channels with alternating secondary branches

“…7, the numerical and experimental results illustrated a high degree of agreement, which indicated that the numerical results and plots generated from the simulations could be used to analyze the fluid flow and heat transfer phenomena associated with each of the three designs. This was generally in agreement with the conclusions of previous studies on similar investigations of fluid flow and heat transfer in the geometries of similar scale [7,[27][28][29][30][31][32].…”

“…Thus, secondary branches are added to best performing wavy channel geometry (identical aspect ratios) in the study conducted by Sui et al [27]. There are 2 novel designs investigated in this study; the first seeks illustrate the effects of adding secondary branches and the secondary will prelude the impact of lowered amplitude of waviness.…”

Numerical Model of a Variable-Combined-Cycle Engine for Dual Subsonic and Supersonic Cruise

“…In this case the channel aspect ratio is as low as 1:2 and the enhancement phenomena has to do with the generation of vortical structures that improve the mixing of the stream [28]. On the other hand, the study of Gong showed that even when no vortical structure can be formed, in case of very low Reynolds (50-150), high values of the Nusselt number (Nu > 10) could be achieved due to the thinning of the boundary layer [29].…”

Numerical study of laminar flow and heat transfer in microchannel heat sink with offset ribs on sidewalls

“…Chen et al [9] numerically analyzed laminar flow and heat transfer in microchannel heat sink with rough surfaces and found that the heat transfer coefficient increased almost linearly with Reynolds number and was larger than the smooth one. Sui et al [10,11] and Mohammed et al [12] experimentally and numerically studied laminar flow and heat transfer in wavy microchannel heat sink and found that it had better heat transfer performance than the smooth one. Ghaedamini et al [13] numerically studied the developing forced convection in converging-diverging microchannel heat sink.…”

“…One is to develop the converging-diverging or wavy microchannels, which have played an important role in fluid mixing and heat transfer as indicated by Ghaedamini et al [13] and Sui et al [10,11]. Two is to work as micromixers or baffles, which can enhance the mixing of cold and hot fluids and the heat transfer as indicated by Cheng [8] and Promvonge et al [20].…”