Numerical investigation of buoyancy induced turbulent flows in partially open enclosures

R, Harish (2014) Numerical investigation of buoyancy induced turbulent flows in partially open enclosures. PhD thesis, Indian Institute of Technology Hyderabad.

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The buoyancy induced turbulent flows in ventilated enclosure with internal heat source has important applications in building ventilations, solar energy receivers, thermal management of electronic devices and enclosure fire dynamics. In naturally ventilated buildings, the fluid flow is mainly driven by buoyancy and air exchange through ventilation openings provides thermal comfort for building occupants. During fire accidents in buildings and in long tunnels, larger temperature difference induces strong buoyant plumes and the hot gas flow characteristics are important for the design of fire safety and ventilation systems. The air flow patterns through vertical openings such as doorways and windows are widely studied but very few investigations are performed with horizontal or ceiling openings. The horizontal vents are openings in ceilings, floors or smoke vent at roof top. The flow patterns through horizontal openings are highly unstable in comparison with vertical openings. Previous investigations through horizontal openings have not considered the effects of heat source strength, vent aspect ratio, wind speed, wind direction, heat source and vent locations.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Thesis (PhD)
Uncontrolled Keywords: TD234
Subjects: Others > Mechanics
Divisions: Department of Physics
Depositing User: Library Staff
Date Deposited: 28 Apr 2015 06:37
Last Modified: 07 Aug 2015 09:00
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