Micropolar flow due to a rotating disc with suction and injection

The steady, laminar and incompressible flow of a micropolar fluid due to a rotating disk with uniform suction and injection is studied. The equations of motion are reduced to seven ordinary differential equations in dimensionless form involving six parameters, and are integrated numerically by the Gauss-Seidel iterative procedure and Simpson's rule. Results are presented in tabular and graphical form for different values of the suction and injection parameters, and are compared with results obtained by Stuart (1954) and Ackroyd (1978) for Newtonian fluids. It is noticed that the effect of suction shows a rapid decrease in magnitude of the radial component with the increase of suction, and the axial flow at infinity toward the disk is larger.