Local Thermal Non-equilibrium Analysis of Cu-Al۲O۳ Hybrid ‎Nanofluid Natural Convection in a Partially Layered Porous ‎Enclosure with Wavy Walls

سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 155

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شناسه ملی سند علمی:

JR_JACM-9-3_008

تاریخ نمایه سازی: 20 فروردین 1402

چکیده مقاله:

A numerical study is performed to investigate the local thermal non-equilibrium effects on the natural convection in a two-dimensional enclosure with horizontal wavy walls, layered by a porous medium, saturated by Cu-Al۲O۳/water hybrid nanofluid. It is examined the influence of the nanoparticle volume fraction, varied from ۰ to ۰.۰۴, the Darcy number (۱۰-۵ ≤ Da ≤ ۱۰-۲), the modified conductivity ratio (۰.۱ ≤ ϒ ≤ ۱۰۰۰), the porous layer height (۰ ≤ Hp ≤ ۱), and the wavy wall wavenumber (۱ ≤ N ≤ ۵) on natural convection in the enclosure. Predictions of the steady incompressible flow and temperature fields are obtained by the Galerkin finite element method, using the Darcy-Brinkman model in the porous layer. These are validated against previous numerical and experimental studies. By resolving separately the temperature fields of the working fluid and of the porous matrix, the local thermal non-equilibrium model exposed hot and cold spot formation and mitigation mechanisms on the heated and cooled walls. By determining the convection cell strength, the Darcy number is the first rank controlling parameter on the heat transfer performance, followed by N, Hp and γ. The heat transfer rate through the hybrid nanofluid and solid phases is highest when N = ۴ at a fixed value of nanoparticle volume fraction.

نویسندگان

Hakim T. Kadhim

Mechanical Department, Al-Furat Al-Awsat Technical University, Kufa, ۵۴۰۰۲, Iraq

Zaid M. Al Dulaimi

Mechanical Department, Al-Furat Al-Awsat Technical University, Kufa, ۵۴۰۰۲, Iraq

Aldo Rona

School of Engineering, University of Leicester, LE۱ ۷RH, United Kingdom‎

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  • Ismael, M.A., E. Abu-Nada, and A.J. Chamkha, Mixed convection in ...
  • Geridonmez, B.P. and H.F. Oztop, Natural convection in a cavity ...
  • Hussain, S.H., Analysis of heatlines and entropy generation during double-diffusive ...
  • Alsabery, A.I., et al., Impacts of amplitude and local thermal ...
  • Rashidi, M., et al., New analytical method for the study ...
  • Varol, Y. and H.F. Oztop, Free convection in a shallow ...
  • Das, P.K. and S. Mahmud, Numerical investigation of natural convection ...
  • Al-Srayyih, B.M., S. Gao, and S.H. Hussain, Effects of linearly ...
  • Kadhim, H.T., et al., Numerical study of nanofluid flow in ...
  • Nguyen, M.T., A.M. Aly, and S.-W. Lee, Effect of a ...
  • Singh, A.K. and G.R. Thorpe, Natural convection in a confined ...
  • Kasaeian, A., et al., Nanofluid flow and heat transfer in ...
  • Miroshnichenko, I.V., et al., Natural convection of alumina-water nanofluid in ...
  • Baytas, A.C. and I. Pop, Free convection in a square ...
  • Khashan, S., et al., Numerical simulation of natural convection heat ...
  • Wu, F., et al., Buoyancy induced convection in a porous ...
  • Badruddin, I.A., et al., Numerical analysis of convection conduction and ...
  • Zargartalebi, H., et al., Unsteady free convection in a square ...
  • Feng, Y.-Y., et al., Internal thermal source effects on convection ...
  • Wang, C.-H., et al., Numerical investigations of convection heat transfer ...
  • Wang, C.-H., et al., Double-diffusive convection in a magnetic nanofluid-filled ...
  • Wu, F., W. Zhou, and X. Ma, Natural convection in ...
  • Alsabery, A.I., et al., Impacts of amplitude and local thermal ...
  • Izadi, M., et al., Nanoparticle migration and natural convection heat ...
  • Reddy, P.S. and P.J. Sreedevi, Entropy generation and heat transfer ...
  • Tayebi, T., et al., Natural convection and entropy production in ...
  • Ashorynejad, H.R. and A.J.R. Shahriari, MHD natural convection of hybrid ...
  • Sheikholeslami, M., et al., Variable magnetic forces impact on magnetizable ...
  • Chamkha, A.J., et al., Thermal non-equilibrium heat transfer modeling of ...
  • Ghalambaz, M., et al., Local thermal non-equilibrium analysis of conjugate ...
  • Alsabery, A.I., et al., Impact of two-phase hybrid nanofluid approach ...
  • Gorla, R., et al., Heat source/sink effects on a hybrid ...
  • Ghalambaz, M., et al., MHD natural convection of Cu–Al۲O۳ water ...
  • Izadi, M., et al., Natural convection of a magnetizable hybrid ...
  • Selimefendigil, F. and H.F. Öztop, Conjugate natural convection in a ...
  • Chamkha, A.J., I.V. Miroshnichenko, and M.A. Sheremet, Numerical analysis of ...
  • Sahoo, R.R., P. Ghosh, and J. Sarkar, Performance analysis of ...
  • Mehryan, S.A., et al., Free convection of hybrid Al۲O۳-Cu water ...
  • Kadhim, H.T., F.A. Jabbar, and A. Rona, Cu-Al۲O۳ hybrid nanofluid ...
  • Takabi, B. and S. Salehi, Augmentation of the heat transfer ...
  • Hussein, A.K. and S.H. Hussain, Heatline visualization of natural convection ...
  • Suresh, S., et al., Synthesis of Al۲O۳–Cu/water hybrid nanofluids using ...
  • Chamkha, A.J. and M.A. Ismael, Natural convection in differentially heated ...
  • Khanafer, K., K. Vafai, and M. Lightstone, Buoyancy-driven heat transfer ...
  • Alsabery, A., et al., Effects of nonuniform heating and wall ...
  • Basak, T., et al., Natural convection in a square cavity ...
  • Basak, T., et al., Finite element based heatline approach to ...
  • Abu-Nada, E. and A.J. Chamkha, Effect of nanofluid variable properties ...
  • Brinkman, H., The viscosity of concentrated suspensions and solutions, The ...
  • Aminossadati, S. and B. Ghasemi, Natural convection cooling of a ...
  • Donea, J. and A. Huerta, Finite element methods for flow ...
  • Nithiarasu, P., R.W. Lewis, and K.N. Seetharamu, Fundamentals of the ...
  • Chen, Y. and X. Zhang, A P۲-P۱ partially penalized immersed ...
  • Hauke, G. and T. Hughes, A unified approach to compressible ...
  • COMSOL, M., Comsol multiphysics user guide (version ۵.۲), COMSOL, AB, ...
  • Roache, P.J., Perspective: a method for uniform reporting of grid ...
  • Wilcox, D.C., Turbulence modeling for CFD, La Canada, CA: DCW ...
  • Baytas, A.J.I., Thermal non‐equilibrium natural convection in a square enclosure ...
  • Beckermann, C., S. Ramadhyani, and R. Viskanta, Natural convection flow ...
  • Wang, L., et al., Effects of temperature-dependent viscosity on natural ...
  • Ali, A.M., et al., Thermo-hydraulic performance of a circular microchannel ...
  • Alsabery, A.I., et al., Effect of local thermal non-equilibrium model ...
  • Zhang, L., Y. Hu, and M. Li, Numerical study of ...
  • Shafiee, H., E. NikzadehAbbasi, and M. Soltani, Numerical study of ...
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