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Computational Investigation Of Convective Heat Transfer Biology

Essay add: 14-11-2017, 18:43   /   Views: 2

Use of dimples on the surface can significantly intensify the heat transfer enhancement. Some typical examples for use of dimples for heat transfer enhancement are turbine blade cooling, tube heat exchangers in chemical and textile industries, car radiators etc. Further concept for reduction in thermal resistance and consequent enhancement in heat transfer is to increase the depth of the dimples. Introducing the dimples on the surface not only increase the surface area available for heat transfer but also reduces the hydrodynamic resistance for the fluid flow over the surface, resulting in less pressure drop. The vortices formed inside the dimples results in thinning and to disturb the thermal boundary layer formed over the surface during coolant flow and serve ultimately to bring about enhancement of heat transfer between the fluid and its neighboring surface at the price of less increase in pressure. Moon et. al. [1] studied the channel height effect on heat transfer over the dimpled surfaces. Heat transfer coefficient and friction factors were computationally investigated in rectangular channels, which had dimples on one wall. The heat transfer coefficients were *Corresponding author. Tel- +91 02112 254424

Article name: Computational Investigation Of Convective Heat Transfer Biology essay, research paper, dissertation