Title :
Numerical analysis of characteristic of flow and heat transfer due to natural convection in a enclosure (square) using nano-fluid
Author :
Dey, Prasenjit ; Das, Amal K.
Author_Institution :
Dept. of Mech. Eng., Nat. Inst. of Technol. Agartala, Agartala, India
Abstract :
The present work discusses, numerical analysis of flow and heat transfer ascribed to natural convection of a heated square cylinder enclosed with a square cylinder keeping two vertical walls as cold wall occupied with nanofluid, water-Al2O3, has been computed by using CFD-Fluent 6.3.26. The effects of parameters such as Rayleigh number, solid volume fraction at aspect ratio (inner cylinder width/outer cylinder width)= 0.2 are examined. It is observed that the heat transfer and flow both effected by Rayleigh Number and solid volume fraction. The results are shown in the form of streamline, isotherm and vorticity contour around the heated square cylinder.
Keywords :
aluminium compounds; boundary layers; computational fluid dynamics; external flows; nanofluidics; natural convection; numerical analysis; two-phase flow; vortices; water; CFD-Fluent 6.3.26; H2O-Al2O3; Rayleigh number; aspect ratio; cold wall; heat transfer; heated square cylinder; nanofluids; natural convection; numerical analysis; solid volume fraction; vertical walls; vorticity; Equations; Heat transfer; Mathematical model; Nanoparticles; Space heating; Water heating; Flow; Fluent; Nanofluid; Natural Convection;
Conference_Titel :
Advances in Energy Conversion Technologies (ICAECT), 2014 International Conference on
Conference_Location :
Manipal
Print_ISBN :
978-1-4799-2205-5
DOI :
10.1109/ICAECT.2014.6757068
