Numerical study of turbulent flow and heat transfer in channels with detached pin fin arrays under stationary and rotating conditions

Liang, Ce; Rao, Yu

doi:10.1016/j.ijthermalsci.2020.106659

Cited by 20 publications

(1 citation statement)

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“…Comparative study of fins were also made with microchannel heat sink for the calculation of effect of wall resistance on the total thermal resistance of heat sink and it was found that fins model was more effective and Biot number for the same is less than 0.1 2,3) . Detached fins were also used on turbine channel and studies were done about its effect for turbulent flow when rotor of the turbine is rotating at high speed 4) . Coating over the surface of the material can also reinforce the thermal behaviour of the material which also influence the amount of heat transfer from the surface.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Analysis of Natural Heat Transfer between Rectangular Solid and Perforated Fins Having Different Perforation Characteristics

Mishra¹,

Yadav²,

Bhardwaj³

2023

Evergreen

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This paper presents a comparative study for amount of natural convection heat transfer of solid and perforated faced fins. Effect of number of perforation and its size on natural convection characteristic is also investigated. Experiment is being done for solid fins and perforated fins having different number of perforations on its surface. Effect of size of the perforation and fins spacing on the surface where it need to be mounted is also examined. Solid works software is used for the modelling of the fins and steady state thermal model of ANSYS software is used for the numerical analysis and optimization of the fin's porosity. Analysis is done for 1,2, 3, 4, 5 row inline and zig-zag perforations for different pores diameter which are 4mm, 6mm, 8mm, 10mm and 13mm respectively. Fins spacing on the mounted surface is also an influencing parameter to control the natural heat transfer. Fins spacing is taken 6mm, 8mm, 10mm, 12mm respectively. After the detailed analysis it was concluded that perforated fin should be used over the solid fins to improve the heat transfer rate and for the temperature decrement of the fins surface. Analytical results have presented in this paper in which it is shown that perforated fins having 5 row zig-zag pattern holes with 10mm hole diameter and 10 mm fins spacing can give the optimized result.

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Section: Introductionmentioning

confidence: 99%