Mixed convection of Cu-water nanofluid inside a double lid-driven square cavity including rotating cylinders utilizing Buongiorno model
In the present paper, mixed convection of water-copper nanofluid in a double lid-driven square cavity consisting of two insulated rotating cylinders is studied numerically. To solve two phase modeling of the nanofluid, the Buongiorno model has been implemented. The governing equations have been solved utilizing the Finite Element Method. The parameters studied in this paper include the effect of different configurations of the cylinders, the rotation direction of the cylinders, the angular speed of the cylinders (Ω), the distance of the cylinders from the moving walls (xc), and the Reynolds number (Re). According to the presented results, the horizontal positioning of the rotating cylinders is the optimal configuration. The rotation direction of the cylinders has an important effect on the heat transfer rate from the hot surface and according to the results, the optimal direction depends on the distance of the cylinders from the walls. Furthermore, with the increase of Re, the heat transfer rate also enhances, so by increasing this number from 50 to 200, the heat transfer rate augments by about 105%.
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.