10.24423/EngTrans.2707.20231010
Slow Flow of Couple Stress Fluid Past a Cylinder Embedded in a Porous Medium: Slip Effect
Priya SARKAR
0000-0003-1902-2747
National Institute of Technology
India
Krishna Prasad MADASU
0000-0002-1819-3651
http://www.nitrr.ac.in/viewdetails.php?q=math.mkprasad
National Institute of Technology
India
An analytical study for the creeping flow of a couple stress fluid past a cylinder embedded in a porous medium is presented using the slip condition. The uniform flow is considered far away from a cylinder. The boundary conditions used are zero couple stress and tangential slip conditions. The modified Bessel functions represent the stream function (the velocity). The drag exerted on a solid cylinder immersed in a porous medium is derived. The impacts of the couple stress, permeability, and slip parameters on the normalized drag force are presented graphically. The drag forces of well-known exceptional cases are reduced. The drag force is a decreasing function of the permeability and couple stress parameters and an increasing function of the slip parameter.
Copyright © The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).
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DOI: 10.24423/EngTrans.2707.20231010