EDL Aspects in swirling ionic tribological fluid flow in a squeezed/split channel underlie a high-power magnetic field

Abstract

Studying electrokinetic swirling flows of ionic tribological fluid in a squeezing/splitting scenario has drawn a lot of interest due to its extensive dispensations in mechanical and manufacturing engineering. The present modelling and simulation-based study deals with an in-depth physical exploration of electric double layer (EDL) aspects in a swirling flow via a squeezing/splitting perforated channel filled with ionic tribological fluid when subjected to a high-power magnetic field with Hall current. The rudimentary momentum equations are presented by assigning partial differential equations (PDEs), which are then transmuted into non-linear ordinary differential equations (ODEs) using a compatible similarity substitution. The reduced system of coupled non-linear ODEs with proposed boundary data is dealt with numerically by dint of Runge-Kutta-Fehlberg (RKF45) formula-based shooting scheme, namely Mathematica in-built routine function bvp4c. By plotting distinctive graphs and tables, the physical impacts of emerging model parameters upon the moment profiles and engineering entities of interest are explored and interpreted. Simulated outcomes unravel with an intensification in electroosmosis and rotation parameters, the fluid pressure is discerned to rise near the channel plates while a contrary affinity prevails in the central passage. The shear impedance can be minified by adjusting the squeezing velocity. The imprinted flowlines plots unfold that the reverse flow is noticeable with the negative suction parameter. Our squeezing flow model might apply to tunnelling, semiconductors, sensing and control systems, spacecraft designing, etc.