This study deals with the influence of a rotating cylinder inside the square cavity and multiwalled carbon nanotube–iron oxide ( Fe 3 O 4 ) hybrid nanofluid with water. A two-dimensional system of partial differential equations has been discretized by employing Galerkin finite element method. A finite element method involving the cubic polynomials ( P 3 ) has been implemented to compute for velocity, temperature, and concentration fields, while the pressure is approximated by quadratic ( P 2 ) finite element space of functions. The adaptive Newton method is implemented to solve the discrete system of nonlinear equations. Numerical simulations are performed for different ranges of pertinent parameters such as the nanoparticles volume fraction (between 0 and 0.3%), angular velocity (between 50 and + 50 ), Richardson number (between 0.01 and 3), and rotating cylinder sizes (between 0.2 and 0.4), and three different thermal conditions on the cylinder are investigated: namely, the adiabatic cylinder, cold cylinder, and hot cylinder. It is inferred that the average Nusselt number increases, when the cylinder rotates clockwise. On the contrary, the average Nusselt temperature increases, when the cylinder rotates counterclockwise. Moreover, the local Nusselt number increasing instead of enhancing the rotational speed of the circular cylinder toward the clockwise rotation. The flow philosophy is presented in the form of isotherms, streamlines, and some appropriate plots.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Mixed Convection in Square Enclosure by Considering the Thermal Effect on Cylinder


    Contributors:

    Published in:

    Publication date :

    2021-05-27


    Size :

    14 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Effect of parallel and orthogonal sinusoidal walls on mixed convection inside square enclosure containing rotating cylinder

    Jassim, Hussein Mahmood / Ali, Farooq Hassan / Mahdi, Qusai Adnan et al. | IEEE | 2017


    Natural Convection of Reacting Chemical in Square Enclosure with Circular Cylinder

    Chandra Roy, Nepal / Reddy Gorla, Rama Subba | AIAA | 2022



    Numerical Investigation of Natural Convection Heat Transfer from Square Cylinder in a Vented Enclosure

    Kahwaji, G.Y. / Hussien, A.S. / Ali, O.M. | British Library Conference Proceedings | 2012