A model has been developed to numerically study the developing laminar free convection in vertical open-ended eccentric annuli with isothermal boundary conditions. For a fluid of Prandtl number 0.7 in an annulus of radius ratio 0.5, the developing velocity profiles in addition to the development of the pressure along the annulus are presented. The channel heights required to naturally induce different flow rates have also been obtained for three values of the dimensionless eccentricity, namely, 0.1, 0.5, and 0.7. Variations of the total heat absorbed by the fluid with the channel height are provided for the three values of dimensionless eccentricity.

Issue Section:
Natural and Mixed Convection
Keywords:
Natural Convection, Numerical Methods
Topics:
Annulus, Natural convection
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