Modified MHD Radiative Mixed Convective Nanofluid Flow Model with Consideration of the Impact of Freezing Temperature and Molecular Diameter

Symmetry

Naveed Ahmed¹  Umar Khan²  Ilyas Khan³  Saima Noor⁴  WaqarA. Khan⁵  SayerObaid Alharbi⁵  Adnan Abbasi⁶  SyedTauseef Mohyud-Din⁷ 

[1] Kashmir 12080, Pakistan;Department of Mathematics and Statistics, Hazara University, Mansehra 21120, Pakistan;Department of Mathematics, COMSATS University Islamabad, Abbottabad 22010, Pakistan;Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia;Department of Mathematics, Faculty of Sciences, HITEC University Taxila Cantt, Punjab 47080, Pakistan;;Department of Mathematics, Mohi-ud-Din Islamic University Nerian Sharif, Azad Jammu &Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City 72915, Vietnam;

关键词: arched surface;    nonlinear thermal radiation;    molecular diameter;    Al₂O₃ nanoparticles;    streamlines;    isotherms;    RK scheme;   

DOI  :  10.3390/sym11060833

来源: DOAJ

【 摘 要 】

Magnetohydrodynamics (MHD) deals with the analysis of electrically conducting fluids. The study of nanofluids by considering the influence of MHD phenomena is a topic of great interest from an industrial and technological point of view. Thus, the modified MHD mixed convective, nonlinear, radiative and dissipative problem was modelled over an arc-shaped geometry for Al₂O₃ + H₂O nanofluid at 310 K and the freezing temperature of 273.15 K. Firstly, the model was reduced into a coupled set of ordinary differential equations using similarity transformations. The impact of the freezing temperature and the molecular diameter were incorporated in the energy equation. Then, the Runge−Kutta scheme, along with the shooting technique, was adopted for the mathematical computations and code was written in Mathematica 10.0. Further, a comprehensive discussion of the flow characteristics is provided. The results for the dynamic viscosity, heat capacity and effective density of the nanoparticles were examined for various nanoparticle diameters and volume fractions.

【 授权许可】

Unknown