FORCED-CONVECTION ABOUT A ROTATING SPHERE

Laminar forced convection about a rotating sphere that is subjected to a uniform stream in the direction of the axis of rotation has been numerically investigated. The boundary-layer equations governing this case have been solved by means of a finite-difference scheme for a fluid of Pr = 0.7 over wide ranges of Reynolds number (Re) and Taylor number (Ta). Both the isothermal and constant-heat-flux thermal boundary conditions have been considered. A comparison with data available in the literature has been made. Results not available in the literature, at considerably large values of the spin parameter (Ta/Re2), are presented for the local and average Nusselt numbers.