Entropy generation for peristaltic blood flow of a magneto-micropolar fluid with thermal radiation in a tapered asymmetric channel

Asha, S. K.; Deepa, C.K.

doi:10.1016/j.rineng.2019.100024

Cited by 66 publications

(27 citation statements)

References 23 publications

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“…Also, to completely explore the effect of the elevated viscosity levels, microcirculation is to be taken into consideration. Finally, the blood traveling the entire vascular system of the human body is non-Newtonian in nature [ 50 ]. The non-Newtonian nature of blood can be considered for future studies.…”

Section: Limitationsmentioning

confidence: 99%

A 2D FSI mathematical model of blood flow to analyze the hyper-viscous effects in atherosclerotic COVID patients

Saha

Bhattacharjee

2021

Results in Engineering

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Recent researches on COVID 19 has been extended to analyze the various morphological and anatomical changes in a patient’s body due to the invasion of the virus. These latest studies have concluded that there happens a high rise in the viscosity of the blood in a COVID 19 patient, supported by the extensive analysis of the clinical data. In the present paper, a mathematical model in the form of a differential equation system has been proposed to disclose the various changes that occur in the flow across the stenosis of an arterial segment. The consequences of the hyperviscosity of blood on the blood flow characteristics in a stenosed artery are analyzed by solving the model using a finite element method (FEM) solver. A laminar flow coupled with solid mechanics through the Fluid-Structure Interaction (FSI) interface has been studied using an Arbitrary Lagrangian-Eulerian (ALE) method. For the first time, the mathematical model was used to analyze the hyper-viscous flow condition in COVID 19 patients. The present research is mainly based on the numerous clinical reports enlisting the various morphological, hematological, and rheological changes in the blood.

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Section: Limitationsmentioning

confidence: 99%

A 2D FSI mathematical model of blood flow to analyze the hyper-viscous effects in atherosclerotic COVID patients

Saha

Bhattacharjee

2021

Results in Engineering

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“…And in order to get over this problem, generation of entropy takes place to control the loss of useful energy. Asha and Deepa [32] investigated the generation of entropy along with thermal radiation of a non‐Newtonian fluid with peristalsis in a tapered channel where it was found that the entropy generation is reduced with an increase in the magnetic parameter. Zahir et al.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic entropy of a magnetized Ree‐Eyring particle‐fluid motion with irreversibility process: A mathematical paradigm

Bhatti

Abdelsalam

2020

Z Angew Math Mech

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This article deals with the entropy generation and irreversibility process under the effects of partial slip on magnetic dusty liquid induced by peristaltic wave through a porous channel. The Ree‐Eyring fluid model has been used for a governing flow. Mathematical modelling is based on Ohm's law, continuity equation, Darcy law and momentum equation. Analytical solutions are presented for fluid and particle phase. The effects of different pertinent parameters are considered for Newtonian and non‐Newtonian cases. Numerical integration has been carried out using a computational software to analyse the pumping characteristics. The behaviour of velocity profile, trapping mechanism, entropy generation, Bejan number, temperature distribution, and pressure rise are investigated. From the obtained results, it is noticed that entropy generation and Bejan number enhanced due to the presence of Brinkman number as well as with the strong influence of non‐Newtonian effects. The presence of particles in the fluid decelerates the flow. The magnetic and fluid parameter perform in a similar manner on peristaltic pumping. The temperature profile shows increasing behaviour against higher values of Brinkman number and magnetic field. The present analysis presents different interesting results that help examine dusty fluid with other rheological working fluid models. This work is also applicable in smart fluid pumping systems in aerospace and nuclear industry as well as peristaltic electromagnetic micro‐pumps in bio‐medical engineering.

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“…The flow behavior is examined with respect to various flow geometries. Some remarkable studies with the entropy concept over a stretched surface can be listed in previous studies 11–22 …”

Section: Introductionmentioning

confidence: 99%

“…Some remarkable studies with the entropy concept over a stretched surface can be listed in previous studies. [11][12][13][14][15][16][17][18][19][20][21][22] The aim of this article is to analyze the impact of nonlinear mixed convective flow of non-Newtonian material (micropolar fluid) by a stretched surface. The flow is generated by a stretched velocity U w = cx.…”

mentioning

confidence: 99%

Numerical simulation for the mixed convective flow of non‐Newtonian fluid with activation energy and entropy generation

Khan

Alzahrani

2020

Math Methods in App Sciences

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Here, mathematical modeling is performed for the nonlinear mixed convection in dissipative convective flow of micropolar fluid towards a stretched surface. Mixed convection occurs when both forced and natural convection mechanisms act together. Mixed convection problems are categorized by Grashof number. This is also addressed as situations where both buoyant and pressure forces interact. Slip condition is considered at the boundary for the velocity. Magnetohydrodynamics (MHD) fluid is considered. Novel features of nanofluids like Brownian motion and thermophoresis diffusions are further addressed. Convective condition is imposed at the stretched boundary. Concentration of material particles is discussed with activation energy. Nonlinear partial differential equations are converted into ordinary ones via appropriate similarity transformations. The velocity, temperature, concentration, skin friction, Nusselt number, and entropy generation are discussed numerically with the help of built‐in‐shooting method. Our obtained outcomes show that the velocity of material particles reduces against larger slip parameter and micropolar parameter. Temperature enhances for larger thermal Biot and Eckert numbers. Concentration of fluid particles is more versus solutal Biot number and activation energy parameter. Furthermore, entropy rate increases for higher values of micropolar fluid parameter and activation energy parameter while it declines against slip parameter.

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Entropy generation for peristaltic blood flow of a magneto-micropolar fluid with thermal radiation in a tapered asymmetric channel

Cited by 66 publications

References 23 publications

A 2D FSI mathematical model of blood flow to analyze the hyper-viscous effects in atherosclerotic COVID patients

A 2D FSI mathematical model of blood flow to analyze the hyper-viscous effects in atherosclerotic COVID patients

Thermodynamic entropy of a magnetized Ree‐Eyring particle‐fluid motion with irreversibility process: A mathematical paradigm

Numerical simulation for the mixed convective flow of non‐Newtonian fluid with activation energy and entropy generation

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