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作者:

Rasool, Ghulam (Rasool, Ghulam.) | Wakif, Abderrahim (Wakif, Abderrahim.) | Wang, Xinhua (Wang, Xinhua.) | Shafiq, Anum (Shafiq, Anum.) | Chamkha, Ali J. (Chamkha, Ali J..)

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摘要:

Motivated by the thermal importance of feeble electrically conducting nanofluids and their flow controls in many industrial and engineering applications, the present scrutinization intended to evidence comprehensively the main electro-magneto-hydrothermal and mass aspects of convective non-homogeneous flows of alumina-based pure water nanofluids Al2O3-H2O over a horizontal flat surface of an electromagnetic actuator (i.e., Riga pattern, which is embedded geometrically in a Darcy-Forchheimer porous medium. Further, the present nanofluid flow model is formulated realistically under the umbrella of the renovated two-phase Buongiorno's approach with the inclusion of Brownian motion and thermophoresis diffusive phenomena, in which the vertical component of the nanoparticles’ mass flux tend to vanish at the limiting contact surface due to its impermeability trend. For streamlining the technical handling of the present nanofluid flow problem, the governing partial differential equations (PDEs) are simplified mathematically by adopting the physical approximations of the boundary layer theory and then transformed into a differential structure of ordinary differential equations (ODEs) based on several similarity changes. Methodologically, the resulting nonlinear coupled ODEs are solved numerically via a validated differential quadrature procedure. Besides, the generated graphical demonstrations show that the nanofluid temperature is enhanced significantly with the porosity factors, the nanoparticles’ loading, the convective heating strength, and the thermophoresis process. However, the porosity factors and the nanoparticles’ loading exhibit a slowing-down impact on the nanofluid motion. Usefully, it is revealed from the obtained GDQM - NRT datasets that the nanoparticles’ loading and the porosity factors express an important improvement in the strength of the surface viscous drag forces, whereas the induced electromagnetic field shows a reverse viscous frictional impact. © 2022 THE AUTHORS

关键词:

Ordinary differential equations Aluminum oxide Magnetos Boundary layers Porosity Drag Brownian movement Nanofluidics Porous materials Alumina Nanoparticles Thermophoresis

作者机构:

  • [ 1 ] [Rasool, Ghulam]Institute of Intelligent Machinery, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Rasool, Ghulam]Department of Mechanical Engineering, Lebanese American University, Beirut Lebanon
  • [ 3 ] [Wakif, Abderrahim]Laboratory of Mechanics, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Morocco
  • [ 4 ] [Wang, Xinhua]Institute of Intelligent Machinery, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Shafiq, Anum]School of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing, China
  • [ 6 ] [Chamkha, Ali J.]Faculty of Engineering, Kuwait College of Science and Technology, Doha District; 35004, Kuwait

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来源 :

Alexandria Engineering Journal

ISSN: 1110-0168

年份: 2023

卷: 68

页码: 747-762

6 . 8 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:19

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