Electroosmotic flow of Phan-Thien-Tanner fluids at high zeta potentials: An exact analytical solution

摘要: We present a mathematical model to study the electroosmotic flow of viscoelastic fluid in parallel plate microchannel with high zeta potential, taking hydrodynamic slippage at walls into account underlying analysis. use simplified Phan-Thien–Tanner (s-PTT) constitutive relationships describe rheological behavior fluid, while Navier’s slip law is employed interfacial slip. Here, we derive analytical solutions for potential distribution, velocity, and volumetric rate based on complete Poisson–Boltzmann equation (without considering frequently used Debye–Huckel linear approximation). For electrokinetic transport, this investigation primarily reveals influence rheology, wall as modulated by electrochemistry velocity rate, stress, well apparent viscosity. show that combined viscoelasticity higher coefficient lead phenomenal enhancement rate. believe analysis, besides providing deep theoretical insight interpret transport process, will also serve fundamental design tool microfluidic devices/systems under influence.We w...