EFFECT OF VOLUMETRIC BLOCKAGE RATIO ON THERMAL PLUME CHARACTERISTICS IN HORIZONTAL CHANNEL
Journal: International Journal of Mechanical Engineering and Technology(IJMET) (Vol.9, No. 3)Publication Date: 2018-12-27
Authors : WAMAN D WAIKAR; R.HARISH;
Page : 475-483
Keywords : Grashof number; Horizontal vent; Volume Blockage Ratio;
Abstract
BSTRACT In the present study we investigate the buoyancy induced turbulent flow characteristics in a ceiling ventilated horizontal channel with an internal heat source. Numerical analysis is performed in the channel for two different Grashof number Gr=7.88 x 1011 and 1.18 x 1012 and the volumetric blockage ratio is varied from 0.012 to 0.055. It is found that by increasing the Grashof number to Gr=1.18 x 1012, the net mass flow rate through the central, upstream and downstream vents are increased by 23%, 16% and 15% respectively. It is also identified that by increasing the volumetric blockage ratio, the average temperature for Gr=7.88 x 1011 and 1.18 x 1012 are increased by 26.4% and 38.6%; while the average longitudinal velocity are decreased by 56% and 44% respectively
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Last modified: 2018-12-13 16:45:58