Laminar free convection in open-ended vertical 7-rod bundles: experiments and porous model |
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Authors: | S C Haldar A K Mohanty M R Dubey |
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Affiliation: | Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721302, India |
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Abstract: | The flow of ambient air induced solely by buoyancy, through a vertical rod bundle has been modelled as a phenomenon in a porous medium. The rods are at uniform heat flux condition and the circular shell adiabatic. The induced flow rate was found to be controlled by a parameter ψ dependent on the heat flux, rod diameter, length, fluid properties and the bundle permeability. Measurements performed on two 7-rod bundles corroborate the theoretical predictions. Longitudinally averaged heat transfer rates from the central and peripheral rods have also been measured and average information generated for the bundle. |
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