Radial stagnation flow of a micropolar fluid over a twisting cylinder

An investigation is accomplished to analyze the problem of radial stagnation flow of micropolar fluid radially impinging over a twisting cylinder. The impact of the twisting rate sigma, Reynolds number R on the flow under the concentration of rotation of microelements on the flow is predicted in this research. By utilizing similarity variables, the leading flow equations of micropolar fluid are transformed into ordinary ones. A numerical scheme called the Keller-Box technique is applied to acquire the numerical results. The consequences of the micro rotational components on the twisting parameter sigma=gamma/k$\sigma \ = \ \gamma /k$ are analyzed. Important characteristics of this flow are studied for different values of K,R,$K,R,$ and sigma. The wall shear stresses are also obtained. The interesting feature of axial and azimuthal wall shear stress parameters under the concentration of micro rotation of fluid elements are obtained and discussed.