Ph.D. Tezi Görüntüleme

       Solutions were obtained for Dean number ranges from 2.3 to 207.2, radius of curvature 10 m, Prandtl number 0.7 and the wall temperature of the inner and outer surfaces 350 and 300 K, respectively. Moreover, the secondary flow streamlines, the isotherms, velocity profiles and average and local Nusselt numbers were presented for four different values (5.5, 3.8, 2.9 and 2.36) of annulus dimension ratio (a/b). As a result, it is observed that the secondary flow resulting from centrifugal force changes the distribution of the velocity and the temperature in concentric or eccentric curved annular ducts. Moreover, it is determined that when the ratios of a/b decrease, viscous force become more effective with respect to centrifugal force.