Understanding the Chemical Reaction, Mixed Convection, and Thermo-Diffusion Features of Non-Newtonian Fluid (Prandtl Fluid) Driven by Electroosmosis Activity via Wavy Tapered Microfluidic System

Abstract

In this research, we investigate how the hall current and electroosmosis effect the rotating Eyring–Prandtl fluid flow in a wavy microchannel when mixed convection and joule heating are present. We employ the sophisticated peristaltic wave approach to construct a model that exhibits nonuniform boundaries characterized by diverse amplitudes and phases. We focus on how the walls adjust to the convective boundary conditions. To simplify the system, we used the lubrication method and the Debye–Huckel linearization technique to linearize the Poisson–Boltzmann equations. The electroosmotic parameter and the Helmholtz–Smoluchowski velocity contribute to the rise in fluid velocity. The fluid's temperature drops and its concentration rises when the joule heating parameter is raised. The temperature and concentration of the fluid showed similar patterns concerning the Biot numbers. When the reaction mechanism parameter values increase, the fluid concentration decreases because the diffusivity of the chemical molecules decreases. The Nusselt number (Nu) increases in the center of the channel as a result of the joule heating parameter. The current research on electrokinetic fluid flow through microchannels and micro-peristaltic transport has sparked immense interest in biomedical engineering. In particular, electroosmosis shows great potential in enhancing different aspects of cancer treatment, such as targeted drug delivery, improved therapeutic effectiveness, and advanced diagnostic capabilities. Specifically, in physiology, electroosmosis-based techniques can significantly enhance the precision and efficiency of drug delivery systems. By leveraging the principles of electroosmosis, targeted delivery of chemotherapeutic agents can be improved, ensuring higher concentrations of drugs reach the tumor site while minimizing systemic exposure and associated side effects. Additionally, the ability to control fluid flow at a microscale within biological tissues opens up new avenues for minimally invasive procedures, improving patient outcomes and recovery times.