Application of Rigid Lid Boundary Condition for Three Dimensional Flow Analysis beneath Floating Structure

- Journal title : Journal of Ocean Engineering and Technology
- Volume 26, Issue 5, 2012, pp.55-62
- Publisher : Korean Society of Ocean Engineers
- DOI : 10.5574/KSOE.2012.26.5.055

Title & Authors

Application of Rigid Lid Boundary Condition for Three Dimensional Flow Analysis beneath Floating Structure

Hong, Nam-Seeg;

Hong, Nam-Seeg;

Abstract

In this paper, the rigid lid boundary condition is applied to simulate the influence of floating structures such as ships or pontoons, and the pressure term in both the momentum equations and continuity equation are modified. The pressure of a floating structure under the free surface is dependent on the draft of the structure, generally called a ship. If the free surface is covered by a floating structure, the free surface cannot move freely. The water level should be fixed, using a rigid lid boundary condition. This boundary condition is implemented by reducing the storage area of the grid cell with a factor between zero and one. The numerical model developed by Hong (2009) is verified through a comparison with experimental results, and the influence of the reduction factor is investigated using the verified numerical model.

Keywords

Rigid lid;

Language

Korean

References

1.

기성태 (2002). "수중 유연막 방파제 I: 수평-수직 유연막으로 구성된 라멘형 시스템", 한국해양공학회지, 제16권, 제5호, pp 7-14.

2.

조일형 (1994). "파랑중 막구조 방파제의 거동 특성", 한국항만학회지, 제8권, 제1호, pp 15-22.

3.

조일형, 홍석원 (1995). "유연막 방파제에 의한 경사파의 산란", 한국해안.해양공학회지, 제7권, 제3호, pp 219-226.

4.

홍남식, 김가야, 강윤구 (2008). "오탁방지막을 포함하는 3차원 흐름 수치모델", 한국해양공학회지, 제22권, 제3호, pp 1-7.

5.

홍남식 (2009) "Rigid lid 경계조건을 이용한 부유체 포함 3차원 유동해석", 한국해양과학기술협의회 공동학술대회, 5월, 창원, 한국.

6.

Bryan, K. (1969). "A Numerical Method for the Study of the Circulation of the World Ocean". J. Comput. Phys., Vol 4, pp 347-376.

7.

Cho, I.H. and Kim, M.H. (2000). "Interactions of Horizontal Porous Flexible Membrane with Waves", Journal of Waterway, Port, Coastal and Ocean Engineering (ASCE), Vol 126, No 5, pp 245-253.

8.

Cho, I.H., Kee, S.T. and Kim, M.H. (1997). "The Performance of Flexible Membrane Wave Barrier in Oblique Wave", Journal of Applied Ocean Research, Vol 19, No 3-4, pp 171-182.

9.

Cho, I.H., Kee, S.T. and Kim, M.H. (1998). "Performance of Dual Flexible Membrane Wave Barrier in Oblique Wave", Journal of Waterway, Port, Coastal and Ocean Engineering (ASCE), Vol 124, No 1, pp 21-30.

10.

Demin, Y.L. and Ibraev, R.A. (1989). "A Numerical Method of Calculation of Currents and Sea Surface Topography in Multiply Conneted Domains of the Ocean". Sov. J. Numer. Anal. Math. Mode& 43): 211-225.

11.

Dukowicz, J.K., Smith, R.D. and Malone, R.C. (1993). "A Reformulation and Implementation of the Bryan-Cox-Semtner Ocean Model on the Connection Machine". J. Atmos. Oceanol. Techn., Vol 10, pp 195-208.

12.

Jager, B. and Schijndel, S.V. (2000). 3D Computations around Structures, Report Q2487, WL/Delft Hydraulics, Delft, Netherlands.

13.

Klemp, J.B., and Durran, D.R. (1983). "An Upper Boundary Condition Permitting Internal Gravity wave Radiation in Numerical Mesoscale Models". Mon. Wea. Rev., Vol 111, pp 430-444.

14.

Kornilov, V.I. and Kharitonov, A.M. (1984). "Investigation of the Structure of Turbulent flows in Streamwise Asymmetric Corner Configurations", Exp. Fluids, Vol 2, pp 205-212.

15.

Leendertse, J.J. and Gritton, E.C. (1971). A Three-Dimensional Model for Estuaries and Coastal Seas: Vol II, Computation Procedures, Report R-708-NYC, The Rand Corporation, Santa Monica.

16.

Leendertse, J.J., Alexander, R.C. and Liu, S.K. (1973). A Three-Dimensional Model for Estuaries and Coastal Seas: Vol IIV, Report R-1417, 1764, 1884, 2187-OWRT, The Rand Corporation, Santa Monica.

17.

Marchuk G.I. and Sarkisyan, A.S. (1986). "Mathematical Modelling of Ocean Circulation". Springer, Berlin, 292 pp. 00-00.

18.

Rai, M.M. and Moin, P. (1993). "Direct Numerical Simulation of Transition and Turbulence in a Spatially Evolving Boundary Layer", J. Comp. Phys., Vol 109, pp 169-192.

19.

Stelling, G.S. and Leendertse, J.J. (1991). "Approximation of Convective Processes by Cyclic ACI Methods", Proceedings of 2nd ASCE Conference on Estuarine and Coastal Modelling, Tampa.

20.

Tseng, Y.H. and Ferziger, J.H. (2005). "Regional Circulation of the Monterey Bay Region: Hydrostatic Versus Nonhydrostatic Modeling", Journal of Geophysical Research-ocean, Vol 110, C09015,doi:10.1029/2003JC00215 3.

21.

Wang, K.H. and Ren, X. (1993). "Wave Motion Through Porous Structures", Journal of Engineering Mechanics, ASCE, Vol 120, No 5, pp 989-1008.

22.

Yu, X. and Chawang A.T. (1994). "Water Wave Above a Submerged Porous Plate", Journal of Engineering Mechanics, ASCE, Vol 121, No 5, pp 1270-1278.