Heat transfer in unsteady separated stagnation point flow of a micro-polar fluid: Cattaneo–Christov model

Sadiq, Muhammad Noveel; Sarwar, B.; Sajid, Muhammad; Ali, Nasir

doi:10.1007/s10973-021-10889-x

Cited by 10 publications

(5 citation statements)

References 30 publications

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“…Hence, the temperature drops rapidly by P r raises when the under thermal conductivity. Previous investigation 2,3 also reported the same observation.…”

Section: Resultssupporting

confidence: 78%

“…The current solutions were authorized by related into the numerical results compared into − θ normal′ false( 0 false) with those of Dholey 28 and Sadiq et al 2 That validation was noticed on Table 1 that displays the exceptional concurrence among current and announced outcomes about − θ normal′ false( 0 false) with various values of α and P r on the absence of micro-polar fluid model.…”

Section: Validationmentioning

confidence: 89%

“…To taking the authority on micro-rotations, more researchers used the micro-polar model about different heat transfer and fluid flows. For example, Sadiq et al 2 formulated the stagnation point flow on micro-polar fluid into the existence through thermal relaxation time. Kaneez et al 3 discussed the vertex viscosity effect in transport of heat energy on micro-polar fluid.…”

Section: Introductionmentioning

confidence: 99%

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Thermally radiated micro-polar fluid with space-dependent heat source: Modified Cattaneo-Christov heat flux theory

Gangadhar

Prameela

Chamkha

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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The principle aim is to investigate the micro-inertia for vertex viscosity effects that were utilized about design to act on heat energy. Heat transfer was imposed out that unsteady distributed stagnation point flow by micro-polar fluid. That define the energy equation, Cattaneo-Christov heat flux figure was used for formal Fourier's law. Effects on exponential space-dependent heat source and linear thermal radiation were more comprise on the interpreted model. Numerical technique finite element method was occupied about the results to ordinary differential equations that were acquired against governing partial differential equations below the convenient equal transformations. This flow reach toward the departure domain displayed the absorbed flow aspect and opposite flow aspect susceptible on that physical parameters elaborate into the analysis. In view of acquired results, we observed that thermal profile downturn about extra sizably higher values of relaxation time, during increase into increasing radiation factor. An increase in vertex viscosity increases angular motion. Moreover, space-dependent heat digestion is extra applicable about cooling process. That more, the acceptance of current results was entire as growing analogy into actual circulated work.

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“…Hence, the temperature drops rapidly by P r raises when the under thermal conductivity. Previous investigation 2,3 also reported the same observation.…”

Section: Resultssupporting

confidence: 78%

Section: Validationmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermally radiated micro-polar fluid with space-dependent heat source: Modified Cattaneo-Christov heat flux theory

Gangadhar

Prameela

Chamkha

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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show abstract

“…Later, Dholey [8] found that the magnetic field could stabilize the RFS whilst delay the separation of boundary layer of USSP flow. Some of the works on the topic of SSP flow with different surfaces are found in the papers published by [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamics unsteady separated stagnation‐point (USSP) flow of a hybrid nanofluid on a moving plate

et al. 2022

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In view of the unique properties in the hybrid nanofluids, this working fluid has been widely applied in industrial and technological sectors along with the substantial growth of numerical and experimental studies. Hence, this study contributes to the thermal characteristics and flow behavior of magnetohydrodynamics (MHD) unsteady separated stagnation point (USSP) flow of Cu-Al 2 O 3 /water nanofluid in a two-dimensional system considering the shifting plate. The results are generated using the bvp4c package by first reducing the governing model. The results show that for the decelerating flow case, dual solutions exist while the steady and accelerating flow cases admit a unique solution. The critical values (separation from laminar to turbulent flow) and separation values (separation from attached flow solution/AFS to reverse flow solution/RFS) are observed and collected for different Hartmann number, acceleration parameter and fluids. The Cu-Al 2 O 3 /water nanofluid has the maximum thermal rate followed by Cu-water and pure water. Meanwhile, the magnetic field and acceleration parameter are also the contributing factors for the thermal enhancement and the expansion of the boundary layer separation.

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“…Zuhra et al 48 gave a numerical analysis of CCHFM HNFs by Lavenberg-Marquard back propagated neural networks. Sadiq et al 49 modeled the HT because of CCHFM. Vinodkumar et al 50 joined the CCHFM HNFs that affected MHD flow via an extending slip in a PMM.…”

mentioning

confidence: 99%

Irreversibility analysis of electromagnetic hybrid nanofluid for Cattaneo–Christov heat flux model using finite element approach

Qureshi

2023

Sci Rep

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To get a better heat transmission capacity of ordinary fluids, new hybrid nanofluids (HNFs) with a considerably greater exponent heat than nanofluids (NFs) are being used. HNFs, which have a greater heat exponent than NFs, are being applied to increase the HT capacities of regular fluids. Two-element nanoparticles mixed in a base fluid make up HNFs. This research investigates the flow and HT features of HNF across a slick surface. As a result, the geometric model is explained by employing symmetry. The technique includes nanoparticles shape factor, Magnetohydrodynamics (MHD), porous media, Cattaneo–Christov, and thermal radiative heat flux effects. The governing equations are numerically solved by consuming a method known as the Galerkin finite element method (FEM). In this study, H2O-water was utilized as an ironic, viscous improper fluid, and HNF was investigated. Copper (Co) and Titanium Alloy (Ti6Al4V) nanoparticles are found in this fluid. The HT level of such a fluid (Ti6Al4V-Co/H2O) has steadily increased in comparison to ordinary Co-H2O NFs, which is a significant discovery from this work. The inclusion of nanoparticles aids in the stabilization of a nanofluid flowing and maintains the symmetry of the flow form. The thermal conductivity is highest in the boundary-lamina-shaped layer and lowest in sphere-shaped nanoparticles. A system's entropy increases by three characteristics: their ratio by fractional size, their radiated qualities, and their heat conductivity modifications. The primary applications of this examination are the biological and medical implementations like dental and orthopedic implantable devices, as well as other devices such as screws and plates because they possess a favorable set of characteristics such as good biomaterials, corrosion resistance and wear, and great mechanical characteristics.

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Heat transfer in unsteady separated stagnation point flow of a micro-polar fluid: Cattaneo–Christov model

Cited by 10 publications

References 30 publications

Thermally radiated micro-polar fluid with space-dependent heat source: Modified Cattaneo-Christov heat flux theory

Thermally radiated micro-polar fluid with space-dependent heat source: Modified Cattaneo-Christov heat flux theory

Magnetohydrodynamics unsteady separated stagnation‐point (USSP) flow of a hybrid nanofluid on a moving plate

Irreversibility analysis of electromagnetic hybrid nanofluid for Cattaneo–Christov heat flux model using finite element approach

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