Volume 2, Number 2 (8-2012)                   JEM 2012, 2(2): 52-61 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

sheikhzadeh G, Arbaban M. Natural Convection of Cu-water Nanofluid in Concentric Annuli with Six Radial Fins Attached to Inner Cylinder. JEM. 2012; 2 (2) :52-61
URL: http://energy.kashanu.ac.ir/article-1-94-en.html

Abstract:  
Laminar natural convection of Cu-water nanofluid between two horizontal concentric cylinders with radial fins attached to the inner cylinder has been studied numerically. The inner and outer cylinders are considered at constant temperature Ti and To respectively, with Ti>To. The governing equations with the corresponding boundary conditions have been solved by using the finite volume method. The hybrid-scheme has been used to discretize the convection terms. In order to couple the velocity field and the pressure in the momentum equations, the SIMPLER-algorithm has been adopted. The effects of variation of the Rayleigh number, the fins length and the volume fraction of nanoparticles on the fluid flow and heat transfer inside the annuli have been investigated. It is observed from the results, by increasing fins length, average Nusselt number decreases and heat transfer rate increases. Also, by increasing the volume fraction of nanoparticles, average Nusselt number and heat transfer rate increases
Type of Study: Research | Subject: Mechanical Engineering

Add your comments about this article : Your username or email:
Write the security code in the box

© 2015 All Rights Reserved | Energy Engineering Management

Designed & Developed by : Yektaweb