Peristaltic flow of a dusty electrically conducting fluid through a porous medium in an endoscope

This study presents the impact of MHD on peristaltic flow of a dusty fluid in an endoscope. The concentric tube is filled in with an incompressible fluid which is flowing through a porous medium. The outer tube wall is flexible while the inner tube is rigid. Coupled equations for both the solid granules and the fluid have been modelled by supposing long wavelength and low Reynolds number assumptions. Analytically results attained are presented through graphs. The impact of different parameters on velocity, pressure rise and streamlines have been included. It has been concluded that the trapped bolus reduces in the case of α and increases in the case of M.