Thermal prediction of rotatory multiwall carbon nanotubes subject to convective boundary conditions and slip effects: Implicit finite difference simulations

• Published in: Numerical heat transfer. Part B, Fundamentals Vol. 86; no. 5; pp. 1196 - 1209
• Main Authors: Khan, Sami Ullah, Majeed, Aaqib, Aziz, Sakeena
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis 04.05.2025; Taylor & Francis Ltd
• Subjects: Biot number; Boundary conditions; Convective conditions; Differential equations; Finite difference method; Fluid flow; Friction factor; Lorentz force; Mathematical analysis; Multi wall carbon nanotubes; MWCNT's; Nanofluids; Optical properties; Ordinary differential equations; rotating flow; Slip; slip effect; Three dimensional flow; Velocity distribution
• ISSN: 1040-7790; 1521-0626
• DOI: 10.1080/10407790.2024.2306274

This article presents the modeling and simulations 3D magneto-hydrodynamic rotating nanofluid flow through a stretched surface. Water is employed as the base liquid, and multiwall carbon nanotubes (MWCNTs) are used as nanosized materials. The unique structure of MWCNTs makes them stand out among the crowd. The principal concern is to enhance the thermal transport efficiency, chemical durability, and important optical and electronics properties. The classical Navier Stoke's problem based upon the law of conservation of mass, momentum and energy with the Xue model's implementation is transformed into an ordinary differential equation by applying similarity approach. Velocity slip and convective boundary conditions are also considered under the Lorentz force. The final form of nondimensional ODEs are, then, solved numerically using finite difference method with the assistance of MATLAB's powerful software. The impression of pertinent convergence flow constraints on fluid velocity, temperature, heat transfer rate, and friction factor are exposed through tables and graphs. A numerical comparison is used to evaluate the code efficiency, and the results show excellent agreement. The effect of the Biot number appears to be raising the temperature. Conversely, increasing the rotation and slip parameter parametric values results in a declining trend in the velocity profile.