Heat transfer enhancement in a converging passage with discrete ribs
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Cited by (15)
Effects of angled ribs on turbulent heat transfer and friction factors in a rectangular divergent channel
2014, International Journal of Thermal SciencesCitation Excerpt :However, no significant study was found in the existing literature that dealing with heat transfer in the ribbed convergent and divergent channels. Hu and Shen [6] investigated the heat transfer enhancement in a converging passage with discrete ribs. The test was performed with staggered array of 45° angled discrete ribs, and also with a combination of the discrete ribs with grooves on two opposite walls of the passage.
A review of turbulence promoters used in solar thermal systems
2012, Renewable and Sustainable Energy ReviewsCitation Excerpt :Small height wires as roughness element are frequently used in heat exchanger for heat transfer enhancement. Hu and Shen [19] investigated the effect of inclined discrete ribs with and without groove and reported performance improvement for discrete arrangement without groove. Cho et al. [20] examined the effect of angle of attack and number of discrete ribs in rectangular duct and reported that gap region between discrete ribs accelerates the flow and results an increase in local heat transfer coefficient.
Experimental and numerical study on heat transfer enhancement of a rectangular channel with discontinuous crossed ribs and grooves
2012, Chinese Journal of Chemical EngineeringA review on methodology of artificial roughness used in duct of solar air heaters
2010, EnergyCitation Excerpt :Gao and Sunden [18] also reported that V-shaped ribs pointing downward perform better than the ribs pointing upward in rectangular ducts. Hu and Shen [19] investigated the effect of inclined discrete ribs with and without groove and reported performance improvement for discrete arrangement without groove. Cho et al. [20] examined the effect of angle of attack and number of discrete ribs in rectangular duct and reported that gap region between discrete ribs accelerates the flow and results an increase in local heat transfer coefficient.
Heat transfer enhancement in a turbulent natural convection boundary layer along a vertical flat plate
2007, International Journal of Heat and Fluid Flow