Browse > Article

Numerical Study on Slanted Cubical-Cavity Natural Convection  

Myong, Hyon-Kook (School of Mechanical and Automotive Engineering, Kookmin University)
Kim, Jong-Eun (Graduate School, Kookmin University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.9, 2006 , pp. 722-728 More about this Journal
Abstract
Natural convection flows in a cubical air-filled slanted cavity that has one pair of opposing faces isothermal at different temperatures, $T_h\;and\;T_c$, respectively, the remaining four faces having a linear variation from $T_c\;toT_h$ are numerically simulated by a solution code (PowerCFD) using unstructured cell-centered method. Special attention is paid to three-dimensional flow and thermal characteristics according to a new orientation (diamond type) for the cubical-cavity benchmark problem in natural convection. Comparisons of the average Nusselt number at the cold face are made with experimental benchmark solutions found in the literature. It is found that the code is capable of producing accurately the nature of the laminar convection in a cubical air-filled slanted cavity with differentially heated walls.
Keywords
Numerical study; Natural convection; Slanted cubical cavity; Diamond type orientation; Rayleigh number; Unstructured cell-centered method; Benchmark solution; Nusselt number;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Myong, H. K. and Kim, J. E., 2005, Numerical study on the nature of natural convection in a cubical cavity, Proc. of KSME Fall Meeting, Part B, pp. 176-181
2 Myong, H. K. and Kim, J. 2005, Development of 3-d flow analysis code using unstructured grid system (I) - numerical method, Trans. KSME Part B, Vol. 29, pp. 1049-1056
3 Myong, H. K., Kim, J. and Kim, J. E., 2005, Development of 3-d flow analysis code using unstructured grid system (II) - code's performance evaluation, Trans. KSME Part B, Vol. 29, pp. 1057-1064
4 Myong, H. K, 2006, Numerical study on the characteristics of natural convection flows in a cubical cavity, Trans. KSME Part B, Vol. 30, pp.337-342   과학기술학회마을   DOI
5 Hortmann, M., Peric, M. and Scheuerer, G., 1990, Finite volume multigrid prediction of laminar natural convection: benchmark solution, Int. J. for Num. Meth. in Fluids, Vol. 11, pp. 189-207   DOI
6 Mamun, M. A. M., Leong, W. H., Hollands, K G. T. and Johnson, D. A., 2005, Erratum to: cubical-cavity natural-convection benchmark experiments: an Extension [Int. J. of Heat and Mass Transfer 46 (2003) 3655-3660], Int. J. of Heat and Mass Transfer, Vol. 48, p. 1224   DOI
7 Pallares, J., Cuesta, I., Grau, F. X. and Francese Giralt, 1996, Natural convection in a cubical cavity heated from below at low Rayleigh numbers, Int. J. Heat Mass Transfer, Vol. 39, No. 15, pp.3233-3247   DOI   ScienceOn
8 Mamun, M. A. M., Leong, W. H., Hollands, K G. T. and Johnson, D. A., 2005, Erratum to: cubical-cavity natural-convection benchmark experiments: an Extension, Int. J. of Heat and Mass Transfer, Vol. 48, p. 1224   DOI   ScienceOn
9 Leong, W. H., Hollands, K G. T. and Brunger, A P., 1998, On a physically-realizable benchmark problem in internal natural convection, Int. J. of Heat and Mass Transfer, Vol. 41, pp.3817-3828   DOI   ScienceOn
10 Mamun, M. A. M., Leong, W. H., Hollands, K. G. T. and Johnson, D. A, 2003, Cubicalcavity natural-convection benchmark experiments: an extension, Int. J. of Heat and Mass Transfer, Vol. 46, pp.3655-3660   DOI   ScienceOn
11 Fusegi, T., Hyun, J. M., Kuwahara, K. and Farouk, B., 1991, A numerical study of threedimensional natural convection in a differentially heated cubical enclosure, Int. J. Heat Mass Transfer, Vol. 34, No.6, pp. 1543-1557   DOI   ScienceOn
12 Leong, W. H., Hollands, K. G. T. and Brunger, A. P., 1998, Experimental Nusselt numbers for a cubical-cavity benchmark problem in natural convection, Int. J. of Heat and Mass Transfer, Vol. 42, pp. 1979-1989   DOI   ScienceOn