Modeling of pulsatile EMHD flow of non-Newtonian blood with magnetic particles in a tapered stenosed tube: a comparative study of actual and approximated drag force

Ponalagusamy, R.; Selvi, R. Tamil; Padma, R.

doi:10.1140/epjp/s13360-022-02434-y

Cited by 8 publications

(3 citation statements)

References 59 publications

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“…The shear yield behavior of MFs obeys the Bingham model, 64 which makes the flow of MFs exhibit complex characteristics. The shear stress of the MF can be calculated by the following simplified equation.…”

Section: Mf Behavior and Energy Consumption Analysismentioning

confidence: 99%

“…The shear yield behavior of MFs obeys the Bingham model, which makes the flow of MFs exhibit complex characteristics. The shear stress of the MF can be calculated by the following simplified equation. where r ′ is the thickness of the fluid layer along the velocity normal direction, τ 0 is the yield strength of MFs, and γ is the shear rate of MFs.…”

Section: Magnetic Field–flow Field Coupling Dynamic Analysismentioning

confidence: 99%

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Bionic Structure Inspired by Tree Frogs to Enhance Damping Performance

Yang

Wiercigroch

et al. 2023

ACS Appl. Mater. Interfaces

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Magnetic fluid shock absorbers (MFSAs) have been successfully utilized to eliminate microvibrations of flexible spacecraft structures. The method of enhancing the damping efficiency of MFSAs has always been a critical issue. To address this, we drew inspiration from the tree frog’s toe pads, which exhibit strong friction due to their unique surface structure. Using 3D printing, we integrated bionic textures copied from tree frog’s toe pad surfaces onto MFSAs, which is the first time to combine bionic design and MFSAs. Additionally, this is also the first time that surface textures have been applied to MFSAs. However, we also had to consider practical engineering applications and manufacturing convenience, so we modified the shape of bionic textures. To do so, we used an edge extraction algorithm for image processing and obtained recognition results. After thorough consideration, we chose hexagon as the shape of surface textures instead of bionic textures. For theoretical analysis, a magnetic field–flow field coupling dynamic model for MFSAs was built for the first time to simulate the magnetic fluid (MF) flow in one oscillation cycle. Using this model, the flow rate contours of the MF were obtained. It was observed that textures cause vortexes to form in the MF layer, which produced an additional velocity field. This increased the shear rate, ultimately leading to an increase in flow resistance. Finally, we conducted vibration reduction experiments and estimated damping characteristics of the proposed MFSAs to prove the effectiveness of both bionic texture and hexagon surface textures. Fortunately, we concluded that hexagon surface textures not only improve the damping efficiency of MFSAs but also require less MF mass.

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Section: Mf Behavior and Energy Consumption Analysismentioning

confidence: 99%

Section: Magnetic Field–flow Field Coupling Dynamic Analysismentioning

confidence: 99%

Bionic Structure Inspired by Tree Frogs to Enhance Damping Performance

Yang

Wiercigroch

et al. 2023

ACS Appl. Mater. Interfaces

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“…[14]. A mathematical model of a pulsatile blood flow with magnetic effects was analysed by Ponalagusamy et al [15]. Ponalagusamy and Priyadarshini [16] proposed the effects of periodic body acceleration and magnetic field with numerical approach on the pulsatle flow of a Casson nano-fluid through an inclined stenosed artery.…”

mentioning

confidence: 99%

Application of Magnetic Drag Force in Hybridization of Ag-Cu/Blood flow in a Stenosed Arterial System in Darcian Porous Material: A Finite Difference Scheme

Ahmed

2023

Preprint

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The present article investigates on a hybrid nano-fluid blood flow in an artery having stenosis under the existence of an external magnetic field over a porous medium via numerical approach. Hybridization of silver and copper with blood as the base fluid is taken into consideration. The governing equations of the blood flow model are patterned into partial differential equations which are converted to sets of ordinary differential equation with the assistance of similarity transformation. The primary features of the MHD arterial flow of blood over the porous surface are represented distinctly by representation of the dual solutions acquired for Velocity and fluid Temperature. The impacts of the variables of the bio-fluid with various parameters like Flow parameter (γ), Porosity parameter (Kp), Magnetic drag force (M), Prandtl Number (Pr), Volume fraction of Silver (Φ1) and Volume fraction of Copper (Φ2) are illustrated and explained in detail through graphs using bvp4c solver in MATLAB Software. Numerical overviews of the evaluated results are compared with numerical study of another published earlier in scientific literatures. This study is beneficial in hyperthermia treatments, vasoconstriction phenomenon, lipolysis, nanotechnology-based drug delivery systems, pulsatile flow analysis and movement of simple flow.

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