Pulsating magnetohydrodynamic flow of Fe<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si3.svg" display="inline" id="d1e1793"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si4.svg" display="inline" id="d1e1801"><mml:msub><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:math>-blood based micropolar nanofluid between two vertical porous walls with Cattaneo–Christov heat fl

Rajkumar, D.; Reddy, A. Varada; Narayana, P. V. Satya; Jagadeshkumar, K.; Chamkha, Ali J.

doi:10.1016/j.jmmm.2023.170564

Cited by 15 publications

(8 citation statements)

References 42 publications

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“…Comparisons of Ag-TiO 2 hybrid nanofluid and Ag nanofluid in a tilted cylindrical W-shape stenosis are shown using solid and dotted lines, respectively. In accordance with Sharma et al [25], Gandhi et al [26], Tripathi et al [27], and Basha et al [28], the graphical outcomes were presented using a specific combination of parameters:…”

Section: Resultsmentioning

confidence: 99%

“…These processes result in a rise in the level of entropy within the system and a reduction in the amount of work that can be extracted from the system. The concept of entropy generation holds significant importance in the fields of engineering and thermodynamics, as it serves as a fundamental constraint on the efficacy of energy conversion procedures [27,28]. In the context of a heat engine, a portion of the energy input is inevitably dissipated due to irreversibilities.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Heat Transfer in Blood Hybrid Nanofluid Flow with Ag–TiO2 Nanoparticles and Electrical Field in a Tilted Cylindrical W-Shape Stenosis Artery: A Finite Difference Approach

et al. 2023

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The present research examines the unsteady sensitivity analysis and entropy generation of blood-based silver–titanium dioxide flow in a tilted cylindrical W-shape symmetric stenosis artery. The study considers various factors such as the electric field, joule heating, viscous dissipation, and heat source, while taking into account a two-dimensional pulsatile blood flow and periodic body acceleration. The finite difference method is employed to solve the governing equations due to the highly nonlinear nature of the flow equations, which requires a robust numerical technique. The utilization of the response surface methodology is commonly observed in optimization procedures. Drawing inspiration from drug delivery techniques used in cardiovascular therapies, it has been proposed to infuse blood with a uniform distribution of biocompatible nanoparticles. The figures depict the effects of significant parameters on the flow field, such as the electric field, Hartmann number, nanoparticle volume fraction, body acceleration amplitude, Reynolds number, Grashof number, and thermal radiation, on velocity, temperature (nondimensional), entropy generation, flow rate, resistance to flow, wall shear stress, and Nusselt number. The velocity and temperature profiles improve with higher values of the wall slip parameter. The flow rate profiles increase with an increment in wall velocity but decrease with the Womersley number. Increasing the intensity of radiation and decreasing magnetic fields both result in a decrease in the rate of heat transfer. The blood temperature is higher with the inclusion of hybrid nanoparticles than the unitary nanoparticles. The total entropy generation profiles increase for higher values of the Brickman number and temperature difference parameters. Unitary nanoparticles exhibit a slightly higher total entropy generation than hybrid nanoparticles, particularly when positioned slightly away from the center of the artery. The total entropy production decreases by 17.97% when the thermal radiation is increased from absence to 3. In contrast, increasing the amplitude of body acceleration from 0.5 to 2 results in a significant enhancement of 76.14% in the total entropy production.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing Heat Transfer in Blood Hybrid Nanofluid Flow with Ag–TiO2 Nanoparticles and Electrical Field in a Tilted Cylindrical W-Shape Stenosis Artery: A Finite Difference Approach

et al. 2023

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“…• Substrate geometry: This can include flexible substrates like leaves [5] or the intricate lining of the lungs [13], as well as other examples like magma streams or tears on a face [14,15]. • Liquid properties: Beyond simple Newtonian fluids like pure water, the flow can involve liquids containing mud, non-Newtonian fluids, or even fluids with nanoparticles [16][17][18][19][20]. This study focuses specifically on micropolar fluids, which have complex molecular structures and include examples like blood, liquid crystals, and colloidal suspensions [21,22].…”

Section: Thin Film Flow and Its Significancementioning

confidence: 99%

Film Flow of Nano-Micropolar Fluid with Dissipation Effect

Siddiqui,

Turkyilmazoglu

2024

CMES

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The physical problem of the thin film flow of a micropolar fluid over a dynamic and inclined substrate under the influence of gravitational and thermal forces in the presence of nanoparticles is formulated. Five different types of nanoparticle samples are accounted for in this current study, namely gold Au, silver Ag, molybdenum disulfide M o S 2 , aluminum oxide Al 2 O 3 , and silicon dioxide SiO 2 . Blood, a micropolar fluid, serves as the common base fluid. An exact closed-form solution for this problem is derived for the first time in the literature. The results are particularly validated against those for the Newtonian fluid and show excellent agreement. It was found that increasing values of the spin boundary condition and micropolarity lead to a reduction in both the thermal and momentum boundary layers. A quantitative decay in the Nusselt number for a micropolar fluid, as compared to a Newtonian one for all the tested nanoparticles, is anticipated. Gold and silver nanoparticles (i) intensify in the flow parameter as the concentration of nanoparticles increases (ii) yield a higher thermal transfer rate, whereas molybdenum disulfide, aluminum oxide, and silicon dioxide exhibit a converse attitude for both Newtonian and micropolar fluids. The reduction in film thickness for fluid comprising gold particles, as compared to the rest of the nanoparticles, is remarkable. KEYWORDSThin film flow; micropolar fluid; nanoparticles; molybdenum disulfide; inclined substrate Nomenclature Dimensional Quantities C p Thermal Capacity JK −1 g Acceleration due to gravity ms −2 h Thickness of the film (m) j 0 Gyration parameter m 2 k Thermal conductivity (Wm −1 K −1 ) p Hydrodynamic pressure kgm −1 s −2 S Axial component of spin vector s −1

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“…Shah et al [17] reported the optimized production of NiZnFe 2 O 4 and MnZnFe 2 O 4 nanoparticles on curved surfaces. Micropolar nanofluid following pulsating motion in view of entropy generation applications was predicted by Rajkumar et al [18]. Derikv et al [19] reported the entropy production assessment for MWCNTs-Fe 3 O 4 decompositions.…”

Section: Introductionmentioning

confidence: 98%

Effects of Temperature-Dependent Conductivity and Magnetic Field on the Radiated Carreau Nanofluid Flow and Entropy Generation

Khan,

Safra,

Ghachem

et al. 2023

Symmetry

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This investigation is related to this study of entropy generation during Carreau nanofluid flow under variable thermal conductivity conditions. The heat and mass transfer phenomena are observed in the presence of thermal radiation and activation energy. The flow is induced by a porous stretching surface. Appropriate variables are used in order to simplify the problem into dimensionless form. The numerical simulations are performed by using the shooting technique. The physical aspects of the problem in view of different flow parameters are reported. It is observed that consideration of variable fluid thermal conductivity enhances heat transfer. An enhancement in heat and mass transfer phenomena is observed with increasing the Weissenberg number. Moreover, entropy generation increases with Weissenberg and Brinkman numbers. Current results present applications in thermal processes, heat exchangers, energy systems, combustion and engine design, chemical processes, refrigeration systems, etc.

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Pulsating magnetohydrodynamic flow of Fe3O4-blood based micropolar nanofluid between two vertical porous walls with Cattaneo–Christov heat fl

Cited by 15 publications

References 42 publications

Enhancing Heat Transfer in Blood Hybrid Nanofluid Flow with Ag–TiO2 Nanoparticles and Electrical Field in a Tilted Cylindrical W-Shape Stenosis Artery: A Finite Difference Approach

Enhancing Heat Transfer in Blood Hybrid Nanofluid Flow with Ag–TiO2 Nanoparticles and Electrical Field in a Tilted Cylindrical W-Shape Stenosis Artery: A Finite Difference Approach

Film Flow of Nano-Micropolar Fluid with Dissipation Effect

Effects of Temperature-Dependent Conductivity and Magnetic Field on the Radiated Carreau Nanofluid Flow and Entropy Generation

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