Browse > Article
http://dx.doi.org/10.5394/KINPR.2007.31.9.793

The Numerical Analysis of Jeju Harbor Flow Considering Effect of Seasonal Wind  

Kim, Nam-Hyeong (Major of Civil and Environmental Engineering, Cheju National University)
Park, Ji-Hun (Harbor and Coastal Engineering, Sekwang Engineering Consultants)
Kang, Hyun-Woo (Littoral Draft Division, Port and Airport Research Institute)
Abstract
The effect of seasonal wind on the tidal circulation in Jeju harbor was examined by using a numerical shallow water model. A finite element for analyzing shallow water flow is presented. The Galerkin method is employed for spatial discretization. Two step explicit finite element scheme is used to discretize the time function, which has advantage in problems treating large numbers of elements and unsteady state. The numerical simulation is compared with three cases; Case 1 does not consider the effect of wind, Case 2 and Case 3 consider the effect of summer and winter seasonal wind, respectively. According to result considering effect of seasonal wind, velocity of current vector shows slightly stronger than that of case 1 in the flow field. It can be concluded that the present method is a useful and effective tool in tidal current analysis.
Keywords
Finite element method; Seasonal wind; Galerkin method; Tidal current;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kawahara, M., and Okamoto, T.(1976), 'Finite element analysis of steady flow of viscous fluid using stream function', Proc. JSCE., No. 247, pp. 123-135
2 Kim, N. H.(1995), 'Analysis of Fluid by Finite Element Method, Wonchang Press', 268pp.(In Korean)
3 Ministry of Maritime Affairs and Fisheries, National Oceanographic Research Institute.(1998), 'Maline Environmental Atlas of Korea Waters', 45 pp (In Korean)
4 Office of Hydrographic Affairs.(1993) 'Technical Reports of hydrography', Republic of Korea
5 Peason, C. E., and Winter, D. F.(1977), 'On the calculation of tidal currents in homogeneous estuaries', J. Phys. Ocean, Vol. 7, No.6, pp. 520-531   DOI
6 Pinder, G. R., and Gray, W. G.,(1977), 'Finite Element Simulation in Surface and Subsurface Hydrology', Academic Press, New York
7 Ministry of Maritime Affairs and Fisheries, National Oceanographic Research Institute. (2003), 'Tidal Current Charts on eastern sea of Jeju-do', 22 pp (In Korean)
8 Young, D. L., and Liggett, J. A. (1977). 'Transient finite element shoallow lake circulation'. Proc. ASCE. Vol. 102(HY2), pp.1299-1313
9 Kawahara, M., and Umetsu, T.(1986), 'Finite element method for moving boundary problems in river flow', Int. J. Num Meth in Fluids, Vol. 6, pp. 365-389   DOI
10 Jung, T. S. and Kim, C. S.,(1992), 'A finite element hydrodynamic model for moving boundary problems', J. of Korean Soc. of Coastal and Ocean Eng., Vol.4, No.3, pp.146-155(In Korean)   과학기술학회마을
11 Kawahara, M., Hirano, H., Tsubota, K., and Inagaki, K.(1982), 'Selective lumping finite element method for shallow water flow', Int. J. Num. Meth. Flud, Vol. 2, pp.89-112   DOI
12 Kawahara, M., and Umetsu, T.(1988), 'Tow-step explicit finite element method for the spill-way flow using moving boundary technique', Computer Modelling in Ocean Engineering', pp 597-608
13 Kim, N. H.(1995), 'An analysis of shallow water flow by two step explicit finite element scheme', J. of the Korean Society of Civil Eng., No.15, Vol.6, pp.1669-1677
14 Kawahara, M.(1977), 'Periodic galerkin finite element method of unsteady flow of viscous fluid', Int. J. Num Meth Eng., Vol. 7, pp.1093-1105