%0 Journal Article %T On semi-inverse solutions for the time-dependent flows of a second-grade fluid %A Muhammad R. Mohyuddin %A S. Asghar %A T. Hayat %A A. M. Siddiqui %J Mathematical Problems in Engineering %D 2006 %I Hindawi Publishing Corporation %R 10.1155/mpe/2006/54295 %X This paper deals with analytical solutions for the time-dependent equations arising in a second-grade fluid. The solutions have been developed by assuming certain forms of the stream function. Expressions for velocity components are obtained for flows in plane polar, axisymmetric cylindrical, and axisymmetric spherical polar coordinates. The obtained solutions are compared with existing results. %U http://www.hindawi.com/journals/mpe/2006/054295/abs/