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Thermal-diffusion effect on rotating hydromagnetic flow in porous media

Kamel M. H.

Mechanics and Mechanical Engineering

2000

Vol. 4, nr 2

149--164

Effects of thermal-diffusion on the rotating hydromagnetic two dimensional flow of an electrically conducting incompressible viscous fluid through porous medium are analyzed. The flow considered is past an infinite non-conducting moving plate. A complete analytical solution is obtained for the temperature, the concentration and the velocity field using Laplace transformation and the method of direct integration by means of the matrix exponential (state space approach) in the case when the plate oscillates in its plane. The influence of various parameters involved is discussed with the help of illustrative graphs.

Force fit of a hollow shaft in a hub of large radius

Koleif I. A., Kamel M. H.

Mechanics and Mechanical Engineering

1999

Vol. 3, nr 2

175--180

In this paper the problem of force fit of a hollow shaft in a hub of large radius is completed under the assumption of plane polar elasticity. Different materials are admitted and radial displacement of the inner and outer radius of the shaft together with that of the hub are allowed. Complete solutions are obtained and are compared with that of the solid shaft. In the case of solid shaft, the results showed that the strain energy is equally shared between the shaft and the hub.