Abstract
The laminar flow and heat convection in annular type crevices of various eccentricities and inclinations are analyzed. The annulus is heated by hot flowing fluid at the inside of the inner tube. The flow field is calculated using creeping flow approximation of boundary layer theory. The thermal field is studied two-dimensionally in terms of the local bulk mean temperature of the fluid. Calculation is performed numerically but in nondimensional form. It is observed that the angle of inclination influences the flow and heat transfer significantly, especially when the eccentricity is severe. When the angle of inclination increases, the flow rate is reduced, the bulk mean temperature at the exit of crevice increases, and the averaged heat-transfer coefficient in crevice decreases. Comparisons are made with respect to the results of concentric annulus.
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