Browse > Article
http://dx.doi.org/10.3795/KSME-B.2013.37.12.1113

Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder at Different Vertical Locations  

Jeong, Seung Jae (School of Mechanical Engineering, Pusan Nat'l Univ.)
Yoon, Hyun Sik (Global Core Research Center for Ships and Offshore Plants, Pusan Nat'l Univ.)
Choi, Changyoung (School of Mechanical Engineering, Pusan Nat'l Univ.)
Ha, Man Young (School of Mechanical Engineering, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.12, 2013 , pp. 1113-1120 More about this Journal
Abstract
A numerical analysis of the effect of the position of a circular cylinder in a $45^{\circ}$ tilted enclosure on natural convection in the enclosure is presented. The location of the cylinder is changed between -0.4 and 0.4. The Rayleigh number is varied between $10^3$ and $10^5$. The effect of the location of the cylinder on natural convection in the enclosure is analyzed by the isothermal line, stream line, and surface-averaged Nusselt number. The flow and heat transfer characteristics are independent of time in the range of the Rayleigh number and cylinder location that is considered in this study. The surface-averaged Nusselt number of the cylinder and enclosure increases as the cylinder gets closer to the wall of the enclosure.
Keywords
Natural Convection; Tilted Square Enclosure; Inner Circular Cylinder; Vertical Location;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Lee, J.R. and Ha, M.Y., 2005, "A Numerical Study of Natural Convection in a Horizontal Enclosure with a Conducting Body," Int. J. Heat Mass Transfer, Vol. 48, 3308-3318.   DOI   ScienceOn
2 Xu, X., Yu, Z., Hu, Y., Fan, L. and Cen, K., 2010, "A Numerical Study of Laminar Natural Convective Heat Transfer Around a Horizontal Cylinder Inside a Concentric Air-Filled Triangular Enclosure," Int. J. Heat Mass Transfer, Vol. 53, pp. 345-355.   DOI   ScienceOn
3 Moukalled, F., Diab, H. and Acharya, S., 2007, "Laminar Natural Convection in a Horizontal Rhombic Annulus," Numer. Heat Transfer, Vol.1, pp. 89-107.
4 Kim, B.S., Lee, D.S., Ha, M.Y. and Yoon, H.S., 2008, "A Numerical Study of Natural Convection in a Sqaure Enclosure with a Circular Cylinder at Different Vertical Locations," Int. J. Heat Mass Transfer, Vol. 51, pp. 1888-1906.   DOI   ScienceOn
5 Kim, J., Kim, D. and Choi, H., 2001, "An immersed- Boundary Finite Volume Method for Simulations of Flow in Complex Geometries," J. Comput. Phys, Vol. 171, pp. 132-150.   DOI   ScienceOn
6 Kim, J. and Choi, H., 2004, "An Immersed-Boundary Finite-Volume Method for Simulation of Heat Transfer in Complex Geometries," KSME Int. J., Vol. 18, pp. 1026-1035.   과학기술학회마을
7 Kim, J. and Moin, P., 1985, "Application of a Fractional Step Method to Incompressible Navier- Stokes Equations," J. Comput. Phys, Vol. 59, pp. 308-323.   DOI   ScienceOn
8 Zang, Y., Street, R.L. and Koseff, J.R., 1994, "A non- Staggered Grid, Fractional Step Method for Time- Dependent Incompressible Navier-Stokes Equations in Curvilinear Coordinates," J. Comput. Phys, Vol. 114, pp. 18-33.   DOI   ScienceOn
9 Lee, J.M., Ha, M.Y. and Yoon, H.Y., 2010, "Natural Convection in a Square Enclosure with a Circular Cylinder at Different horizontal and Diagonal Locations," Int. J. Heat Mass Transfer Vol. 53, pp. 5905-5919.   DOI   ScienceOn