“…Many studies have been conducted on steady state Couette flow under different physical situations (Tsangaris et al, 2007;Barletta and Magyari, 2008;Chen and Zhu, 2008;Chaughan and Rastogi, 2012) while many others considered their investigation on unsteady Couette flow problems (Dash and Biswal, 1989;Zhu and De Kee, 2007;Raptis, 2011;Salama, 2011;Seth et al, 2012;Jha et al, 2013).…”