Electrokinetic peristaltic transport of Bingham-Papanastasiou fluid via porous media

An important rheological mathematical model is created to investigate the rheological impacts of slip velocity and varied zeta potentials in an inclined asymmetric channel. The flow is taken in an isotropic porous medium and is governed by Bingham-Papanastasiou model. The membrane based pumping analysis is done in a wave frame of reference moving with the speed of the wave. Flow model is simplified by considering small wave number & delta;, small Reynolds number Re$Re$ and small Peclet number Pe$Pe$. The emerging linearized non-dimensional system of equations is evaluated for analytical and numerical methods. The effects of sundry parameters on pumping, temperature & theta;, axial velocity u and trapping have been studied graphically. The viscous model is retrieved for Bingham number Bn=0,$Bn\ = \ 0,$ or stress growth parameter M=0$M\ = \ 0$. Finally, the effects of relevant parameters on heat transfer rate and shear stress at walls are discussed numerically. The results show that more pressure is required to flow same amount of fluid in an inclined channel. The temperature field & theta; is boosted by both the Bingham number Bn$Bn$ and the continuation parameter M. It is also observed that different zeta potentials and velocity slip conditions are significant phenomena to influence channel flow. A pumping-based device can be built using the existing model to combine and filter physiological samples and chemicals as well as to visualize the transit of physiological fluids.

Automated summary

An important mathematical model is created to investigate the effects of slip velocity and varied zeta potentials in an inclined asymmetric channel. The study focuses on the rheological impacts of these factors in an isotropic porous medium using the Bingham-Papanastasiou model. Analytical and numerical methods are used to evaluate the resulting non-dimensional system of equations, and the effects of various parameters on pumping, temperature, axial velocity, and trapping are studied. The results show the need for higher pressure in an inclined channel, the influence of zeta potentials and velocity slip conditions on channel flow, and the potential applications of the model in building pumping-based devices for physiological samples and fluids.