• PERISTALTIC TRANSPORT OF A JOHNSON - SEGALMAN FLUID THROUGH A POROUS MEDIUM IN A CHANNEL

Abstract

In this paper, we investigated the peristaltic motion of a Johnson-Segalman fluid through a porous medium in a two - dimensional channel under the assumptions of long-wavelength and low-Reynolds number. The flow is investigated in a wave frame of reference moving with velocity of the wave. A Perturbation solution for small Weissenberg number is obtained for the axial velocity, axial pressure gradient and pressure rise per one wavelength. The effects o various emerging parameters on the pressure gradient, pumping characteristics and friction force are discussed through graphs in detail.