Unsteady compressible boundary layer flow at the stagnation point of a rotating sphere with an applied magnetic field

摘要

THE PAPER is concerned with the unsteady compressible boundary layer flow near the forward stagnation point of a rotating sphere in a uniform axial stream of conducting fluid, with magnetic field normal to the surface. The unsteadiness in the flow is created by (i) giving a sudden change in the wall temperature (enthalpy) as the impulsive motion has started, (ii) impulsive change of the rotation of the sphere, and (iii) sudden changing of the free stream velocity.