Impacts of Freezing Temperature Based Thermal Conductivity on the Heat Transfer Gradient in Nanofluids: Applications for a Curved Riga Surface

被引:34
作者
Adnan [1 ]
Zaidi, Syed Zulfiqar Ali [2 ]
Khan, Umar [3 ]
Ahmed, Naveed [4 ]
Mohyud-Din, Syed Tauseef [5 ]
Chu, Yu-Ming [6 ]
Khan, Ilyas [7 ]
Nisar, Kottakkaran Sooppy [8 ]
机构
[1] Mohi Ud Din Islamic Univ, Dept Math, Nerian Sharif Aj K 2080, Trarkhel, Pakistan
[2] COMSATS Univ Islamabad, Dept Math, Abbottabad Campus, Abbottabad 010, Pakistan
[3] Hazara Univ, Dept Math & Stat, Mansehra 21120, Pakistan
[4] HITEC Univ Taxila Cantt, Fac Sci, Dept Math, Taxila 7070, Pakistan
[5] Univ Multan, Multan 60000, Pakistan
[6] Huzhou Univ, Dept Math, Huzhou 313000, Peoples R China
[7] Ton Duc Thang Univ, Fac Math & Stat, Ho Chi Minh City 2915, Vietnam
[8] Prince Sattam Bin Abdulaziz Univ, Coll Arts & Sci, Dept Math, Wadi Aldawaser 11991, Saudi Arabia
关键词
curved Riga surface; Al2O3; nanoparticles; thermal conductivity; freezing temperature; curvature; heat transfer; SQUEEZED FLOW; MODEL; GAMMA-AL2O3-H2O; VISCOSITY; WATER;
D O I
10.3390/molecules25092152
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The flow of nanofluid over a curved Riga surface is a topic of interest in the field of fluid dynamics. A literature survey revealed that the impacts of freezing temperature and the diameter of nanoparticles on the heat transfer over a curved Riga surface have not been examined so far. Therefore, the flow of nanoparticles, which comprises the influences of freezing temperature and nanoparticle diameter in the energy equation, was modeled over a curved Riga surface. The model was reduced successfully in the nondimensional version by implementing the feasible similarity transformations and effective models of nanofluids. The coupled nonlinear model was then examined numerically and highlighted the impacts of various flow quantities in the flow regimes and heat transfer, with graphical aid. It was examined that nanofluid velocity dropped by increasing the flow parameters gamma and S, and an abrupt decrement occurred at the surface of the Riga sheet. The boundary layer region enhances for larger gamma. The temperature distribution was enhanced for a more magnetized nanofluid, and the thermal boundary layer increased with a larger R parameter. The volume fraction of the nanoparticles favors the effective density and dynamic viscosity of the nanofluids. A maximum amount of heat transfer at the surface was observed for a more magnetized nanofluid.
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页数:16
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