Fluid-Structure Interaction (FSI) analysis of a smart bio-inspired peristaltic pump for reactive chemical waste transfer applications using Eringen’s micromorphic theory

Beg, OA; Beg, TA; Kadir, A; El Gendy, M; Malysheva, LI; Leonard, HJ; Kuharat, S; Zubair, A

Abstract

Smart bio-inspired designs are being embraced in many modern technologies. They feature complex and efficient mechanisms utilized in nature including ciliated internal/external surfaces), respiratory physiology), peristalsis (phloem translocation in trees), micro-pulsating jets (squid propulsion), compliant boundaries (dolphin hydroelasticity), hydrophobic surfaces (Amazonian frog skin), ionic and electrogenic pumps (botany), electromagnetic taxes (ocean micro-organisms), denticles for boundary layer turbulence control (shark skin) and serrated structures being exploited for wind turbine aerodynamics (whale fins). In the hazardous chemicals industry, safe transport of chemicals is essential. Existing pumps are now being superseded by a new generation of smart pumps which exploit the peristalsis mechanism found in gastric fluid mechanics and therefore achieved controlled, efficient pumping of a wide range of industrial liquids via travelling contractions of a flexible tube. In the cosmetics, petrochemical and nuclear industry, many complex non-Newtonian corrosive and chemically reacting fluids are produced. To improve understanding of the smart pump designs, therefore reactive rheological fluid dynamics must be employed. Since liquids often contain particulate suspensions, rheological models require a framework which can mimic microstructural characteristics e.g. spin of the particles. Motivated by this requirement, which is currently unavailable in commercial computational fluid dynamics codes, in the present work a micro-morphic fluid dynamic model (based on Eringen’s celebrated micropolar theory) is utilized. Hydrodynamic dispersion of the transfer contaminant is also simulated with an advanced homogenous-heterogenous chemical reaction model. The long wavelength approximation and Taylor's limiting condition are employed. Fluid structure interaction (FSI) of the micropolar liquid with the smart pump flexible walls is simulated with special dynamic boundary conditions (membrane tension and wall damping) which are used to obtain the average effective dispersion coefficient. Closed-form solutions are derived and via MATHEMATICA symbolic software, numerical evaluations reveal that average effective dispersion coefficient increases with amplitude ratio which implies that dispersion is enhanced in the presence of peristalsis. Furthermore, average effective dispersion coefficient is also elevated with the micropolar rheological and wall parameters. Conversely dispersion is found to decrease with Eringen cross viscosity coefficient, homogeneous and heterogeneous chemical reaction rates. The present simulations provide an important benchmark for further fluid-structure interaction computational models, and also demonstrate that high efficiency is achieved in chemical pumping with bio-inspired designs.

Citation

Beg, O., Beg, T., Kadir, A., El Gendy, M., Malysheva, L., Leonard, H., …Zubair, A. Fluid-Structure Interaction (FSI) analysis of a smart bio-inspired peristaltic pump for reactive chemical waste transfer applications using Eringen’s micromorphic theory. Presented at ICFM 2022: 16th International Conference on Fluid Mechanics, Helsinki, Finland

• Presentation Conference Type: Other
• Conference Name: ICFM 2022: 16th International Conference on Fluid Mechanics
• Conference Location: Helsinki, Finland
• End Date: Jul 20, 2022
• Acceptance Date: Dec 14, 2020
• Deposit Date: Jan 8, 2021
• Publisher URL: https://waset.org/fluid-mechanics-conference-in-july-2022-in-helsinki
• Related Public URLs: https://waset.org/
• Additional Information: Event Type : Conference