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1 International Journal of Applied Mechanics and Engineering

1 2007

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Exact solutions for unsteady incompressible viscous fluid flows

Jamil M., Ahmed F., Khan N. A.

International Journal of Applied Mechanics and Engineering

2007

Vol. 12, no 4

975-988

Two-dimensional, unsteady, laminar equations of motions of an incompressible fluid with variable viscosity are considered. The problem investigated is the flow for which the vorticity distribution is proportional to the stream function perturbed by a generalized uniform stream making an angle with the positive x-axis. Employing transformation variables, the goveming Navier-Stocks Equations (NSE) are transformed into steady state equations and then simple ordinary differential equations and a class of exact solutions are obtained. Several graphs of physical interest of streamline are also displayed and discussed.