Corrugated walls analysis in microchannels through porous medium under Electromagnetohydrodynamic (EMHD) effects

• Main Authors: M. Rashid, Iqra Shahzadi, S. Nadeem
• Format: Article
• Language: English
• Published: Elsevier 2018-06-01
• Series: Results in Physics
• Online Access: http://www.sciencedirect.com/science/article/pii/S2211379717314754

This study looks for corrugated walls analysis in microchannels through porous medium under the impact of Electromagnetohydrodynamic (EMHD) effects. The incompressible and electrically conducting second grade fluid is considered between the two slit microparallel plates. The periodic sinusoidal waves are described for the small amplitude either in phase or out of phase for the corrugations of two wavy walls. By employing mathematical computation, we evaluated the corrugation effects on velocity for EMHD flow. By using perturbation technique, we investigated the analytical solutions of the velocity and volume flow rate. The influence of all parameters on velocity and the mean velocity profiles have been analyzed through graphs. The important conclusion from the analysis is that the small value of amplitude ratio parameter reduces the unobvious wave effect on the velocity. Keywords: Electromagnetohydrodynamic, Corrugated walls, Porous medium, Second grade fluid, Perturbation method