Peristaltic flow of a Casson fluid in an annulus

摘要: Peristaltic transport of a non-Newtonian fluid through the annular gap between two coaxial tubes is studied. We assumed that inner tube rigid whereas outer has sinusoidal wave travelling down its wall. modelled flowing as Casson to study combined effects yield stress (plug width) and on peristaltic transport. The flow investigated in frame reference moving with velocity under long wavelength low Reynolds number assumption. expressions for velocity, stream function, pressure rise, rate frictional force wall are obtained. Results shown graphically discussed results discussion section. It observed both have significant impact resistance walls formation variation trapped bolus.