Abstract

Peristaltic transport analysis of a third order fluid in a tapered asymmetric channel is made. The tapered asymmetric channel has been produced by choosing the peristaltic wave train on the narrow walls to have different amplitudes and phase. Long wavelength and low Reynolds number approach have been employed. The expressions for the horizontal velocity, stream function, pressure rise and frictional forces are obtained by a regular perturbation technique. Numerical computations have also been performed for the pressure rise, frictional force and amplitude of the shear stress and the effects of rheology parameter, amplitudes and phase difference of walls on the flow characteristics are further discussed in detail.

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