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In this paper, we investigate the time-dependent drainage of a thin film of Eyring fluid of variable thickness, flowing down a vertical plate. The exact solutions for the velocity distribution, flow rate, mean thickness, average velocity, vorticity vector, and stress are obtained. Graphical results are presented and discussed for various flow variables like the velocity profile and the variable thickness. PACS Nos.: 01, 47. Nous etudions ici le drainage dependant du temps d'un film mince de fluide de Eyring d'epaisseur variable qui s'ecoule le long d'une plaque verticale. Nous obtenons les solutions exactes pour la distribution de vitesse, le taux d'ecoulement, l'epaisseur moyenne, la vitesse moyenne, le vecteur tourbillon et l'effort de contrainte. Nous presentons les resultats de facon graphique et discutons differentes variables, comme le profil de vitesse et l'epaisseur variable., 1. Introduction The problem of unsteady drainage of a linearly viscous fluid down a vertical wall was originally studied by Jeffreys [1]. He assumed that the inertial forces were negligibly [...]

Introduction: Approximately one in ten Caucasians have heterozygous thiopurine methyl transferase (TPMT) enzyme deficiency. These individuals are at high risk of side effects on treatment with azathioprine but should, in [...]