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    Performance of magnetic dipole contribution on electromagnetic Ellis tetra hybrid nanofluid with the applications of surface tension gradient: A Xue model exploration
    (Elsevier B.V., 2024) Abbas, Munawar; Marzouki, Riadh; Ameen, Hawzhen Fateh M.; Dilsora, Abduvalieva; Younis, Jihad; Akgül, Ali
    The objective of this work is to examine the enhancement of thermal energy transfer in Ellis THNF (tetra hybrid nanofluid) flow with magnetic dipole permits on a vertical surface. Using the Xue thermal conductivity model, the THNF (tetra hybrid nanofluid) is organized according to the diffusion of TNPs (tetra nanoparticles) (Mgo, Cu, Ag, and TiO2)in the engine oil liquid. The flow, mass and heat transportation have been observed in the occurrence of the Marangoni convection impact and CattaneoChristove mass and heat flux model. In biomedical engineering, the model can also be used for targeted drug delivery and hyperthermia treatment, where precise temperature and fluid flow control are essential. Gradient-driven surface tension in order to enhance the possibility for enhancing surface-driven flows in microfluidic devices and material processing techniques, such as welding and crystal formation, where regulated mass transport and consistent temperature distribution are crucial, Marangoni convection is included. Using the Bvp4c, the obtained dimensionless equations are mathematically resolved. It is found that a magnetic dipole significantly increases the generation of the thermal energy field and exhibits an opposing trend with respect to the flow profile. The addition Marangoni convection factor increases the velocity distribution while decline the solutal and thermal distribution. The heat transfer rate is increased by 19.71% for the tetra hybrid nanofluid and 13.43% for the trihybrid nanofluid when the nanoparticles volume fraction is improved from 0.01 to 0.04. © 2024 The Authors
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    Öğe
    Scrutinization of local thermal non-equilibrium effects on stagnation point flow of hybrid nanofluid containing gyrotactic microorganisms: a bio-fuel cells and bio-microsystem technology application
    (Springer, 2024) Okasha, Mostafa Mohamed; Abbas, Munawar; Formanova, Shoira; Faiz, Zeshan; Ali, Ali Hasan; Akgül, Ali; Galal, Ahmed M.
    The impact of Stefan blowing on the stagnation point flow of HNF (hybrid nanofluid) across a sheet containing gyrotactic microorganisms under local thermal non-equilibrium conditions (LTNECs) is briefly discussed in this paper. The present work uses a simplified mathematical model to inspect the characteristics of heat transfer in the absence of LTNECs (local thermal equilibrium conditions). LTNECs, traditionally provide two distinct fundamental temperature gradients for the liquid and solid phases simultaneously. A hybrid nanofluid is a mixture of water as the base fluid and single-walled carbon nanotubes and multi-walled carbon nanotubes. Gyrotactic microorganisms are included into nanoparticles to increase their thermal efficiency in a variety of systems, including microbial fuel cells, enzyme biosensors, bacteria powered micromixers, chip-shaped microdevices like bio-microsystems, and micro-volumes like microfluidic devices. This model can also help environmental engineering by enhancing wastewater treatment procedures by allowing microorganisms to break down pollutants more effectively. It advances the development of more productive photo bioreactors, increasing the output of biofuels in the field of renewable energy. Material scientists can utilize this concept to develop controlled nanostructured materials with consistent composition and thermal properties. The considerable similarity transformation is used to build ordinary differential equations for the nonlinear dimensionless system. This problem is solved numerically by using the Bvp4c method. The results determine that when the Stefan blowing parameter increases, fluid flow increases but temperature, mass transfer rate, and heat transfer are decreased.
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    Öğe
    Significance of melting phenomena on Darcy-Forchheimer flow of trihybrid nanofluid over a disk in the presence of thermophoresis particles deposition
    (Springernature, 2025) Mahariq, Ibrahim; Abbas, Munawar; Fatima, Nahid; Akgul, Ali; Faqihi, Abdullah A.
    The purpose of the proposed study is to examine the significance of Marangoni convection and inclined MHD on an axisymmetric Darcy-Forchheimer flow of a ternary hybrid nanofluid across an infinite disk that includes melting processes. The thermophoresis particle deposition, Joule heating, taken into account. This suggested model aims to compare the Yamada-Ota model and Xue thermal conductivity ternary hybrid nanofluid models' performances. In order to claim the assets of the trihybrid nanofluid model, Fe3O4,Cu\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${F{e}_{3}O}_{4}, Cu$$\end{document} and MoS2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${MoS}_{2}$$\end{document} particles are combined with an improper fluid composed of 50%\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$50\%$$\end{document} ethylene glycol and 50%\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$50\%$$\end{document} water. The improvement of heat transfer processes in thermal management systems, such as those used in the cooling of electronic devices, automobiles, and aerospace components, depends heavily on this model. It can also be used in energy systems, where it can increase the efficiency of solar collectors, nuclear reactors, and geothermal reservoirs by optimizing heat transport in nanofluids. Designing effective filtration, coating, and drug delivery systems requires an understanding of particle deposition behavior, which is made possible by the use of thermophoresis. By utilizing the proper variables, the system of partial differential equations can be converted into an ordinary differential equation. The bvp4c approach provides a numerical solution to this problem. Graphs and Tables are used to examine the effects of various corporal and flow constraints on thermal, solutal, and velocity distributions, as well as the impact of the heat/mass phenomenon on flow behavior. At higher melting parameter, the temperature and horizontal velocity distribution of the ternary hybrid nanofluid are shown to be predominant. Increases in the rate of heat and mass transmission are correlated with increases in the Marangoni convection parameter.