Thermal and solutal transport dynamics in cilia-assisted electro-osmotic peristaltic flow of Casson fluids subject to convective thermal boundaries

Thermal and mass transport mechanisms are essential, to targeted hyperthermia, and solute migration in electro-osmotically and cilia driven physiological flows. Their coupled behaviour is of considerable relevance to emerging biomedical applications. This article there fore focuses on cilia-induced peristaltic conveyance of a Casson fluid through a cylindrical tube under the combined influence of electro-osmosis and convective heat and mass transfer. The Poisson–Boltzmann equation is employed to determine the electric potential distribution and accounts for the electric double layer (EDL) effects within the microvascular regime. A dimensionless formulation is established under the lubrication approximation and the resulting flow characteristics are derived and are analysed graphically. Various indispensable physical characteristics on velocity, temperature, concentration, pressure gradient and streamline are offered explicitly in the end. It can perceive that fluid velocity is intensifying with electro-osmotic parameter $$m$$ , ​ Electroosmotic(Helmholtz-smoluchowski) slip velocity $${U}_{hs}$$ , cilia length $$\epsilon $$ , and volume flow rate $$Q$$ . The temperature rises with heat source/sink parameter $${B}_{0}$$ but decreases with stronger thermal Biot number κand larger Roesseland parameter Rd. The concentration decreases with increasing Soret and Schmidt number, while increasing with mass Biot number $$\gamma $$ . The model has application in biomedical micro-fluidics, cilia driven biological transport, thermal therapy and controlled drug delivery and artificial organs and biomedical flow control systems. A Unified mathematics model developed for cilia-assisted electro-osmotic bioconvective peristaltic flow of a Casson fluid. Convective thermal boundaries incorporated for realistic heat transfer. Coupled thermal and solute transport characteristics are analysed. Electro-osmosis and ciliary motion regulate flow and trapping dynamics. Results provide insights for physiological and bio-microfluidic systems.