Free convection from a partially heated circular cylinder inside a square enclosure
by Ramin Rabani; Shahram Talebi
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 15, No. 6, 2015

Abstract: In this paper, natural convection heat transfer inside a square enclosure containing a circular cylinder is investigated by thermal lattice Boltzmann method (TLBM). All walls of enclosure are maintained in cold temperature. A part of the cylinder wall is maintained in hot temperature and the rest of it is insulated. This part can be located in top, down, or side position of the cylinder. The circular cylinder is placed at the middle of the square enclosure. The ratio of radius to the length of enclosure is 0.2. The Rayleigh numbers 10⁴ and 10⁵ are used for solving the problem. Isothermal lines, streamlines, local and average Nusselt number, and average temperature at different states are recorded. The results show that the heating position causes the flow pattern to be changed and vortices to be different. Rayleigh number 10⁴ generates no natural strong flow. The Nusselt number variation on the top and bottom walls of enclosure is maximum and minimum in all three states of partial heating, respectively. Furthermore, the heating from the bottom of cylinder has more average temperature than that of two other states of partial heating.

Online publication date: Tue, 03-Nov-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Computational Fluid Dynamics, An International Journal (PCFD):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com