Title: Methods for Determining Convection Heat Transfer Coefficients
Abstract: In convection, heat transfer occurs between a fluid in motion and a neighboring surface. In reality, the fact that the fluid is in motion is the most specific aspect of convection. It logically follows that the convection heat transfer coefficient will depend intrinsically on the nature of the flow established. Dimensional analysis is generally used when we wish to establish one or more equations (correlations) describing a given phenomenon or physical parameter, based on a series of experiments. By applying dimensional analysis to natural-convection problems, the Nusselt number can be expressed as a function of the Grashof and Prandtl numbers. The existing correlations used to determine the convection heat transfer coefficient are presented for flows in forced convection and flows in natural convection. In addition, it is necessary for natural convection to distinguish between situations where the fluid flows along plates and the cases where the flow is through horizontal or vertical tubes.
Publication Year: 2018
Publication Date: 2018-12-31
Language: en
Type: other
Indexed In: ['crossref']
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