Abstract
The peristaltic flow of a Walter's B fluid in an endoscope is studied. The problem is modeled in a cylindrical coordinate system. The main theme of the present analysis is to study the endoscopic effects on the peristaltic flow of the Walter's B fluid. To the best of the authors' knowledge, no investigation has been made so far in the literatures to study the Walter's B fluid in an endoscope. Analytical solutions are obtained using the regular perturbation method by taking delta as a perturbation parameter. The approximate analytical solutions for the pressure rise and friction forces are evaluated using numerical integration. The effects of emerging parameters of the Walter's B fluid are presented graphically.