All Issue

2016 Vol.49, Issue 1 Preview Page
Applicability of Permeable Submerged Breakwater for Discharged Flow Control

방류 흐름제어를 위한 투과성 잠제의 적용성 분석

Dong-Soo Hura
,
Woo-Dong Leeb*
허 동수a
,
이 우동b*
aDepartment of Ocean Civil Engineering, Gyeongsang National University
bSenior Researcher, Institute of Marine Industry, Gyeongsang National University
a경상대학교 해양토목공학과
b경상대학교 해양산업연구소
*교신저자. *Corresponding Author. 
31 January 2016. pp. 51-60
PDF XML Citation
Abstract

The purpose of this study is to examine the control function of discharged flow due to the shape and plane arrangement of permeable submerged breakwater. For the discussion on it in detail, 3-dimensional numerical model based on PBM (Porous Body Model), which is able to simulate directly interaction of FluidㆍPermeable structureㆍSeabed has been used to simulate water discharge in a NWT (Numerical Water Tank). To verify the applicability, LES-WASS-3D is analyzed comparing to the experimental result about propagation characteristics of dam-break wave through a permeable structure. Using the results obtained from numerical simulation, the effects of the shape and plane arrangement of submerged breakwater on reducing velocity and flow induction have been discussed related to the mean flow distribution and vertical distributions of horizontal velocities around ones.

Keywords
permeable submerged breakwater
discharge
flow control
flow induction
LES-WASS-3D

본 연구에서는 투과성 잠제의 형상 및 평면배치에 따른 방류 흐름제어 기능을 분석하기 위하여 유체ㆍ투과성 구조물ㆍ해저지반의 비선형 상호간섭을 직접해석 할 수 있는 PBM (Porous Body Model) 기반의 3차원 수치파동수조(NWT; numerical water tank) LES-WASS-3D를 이용하였다. 먼저 이용하는 LES-WASS-3D의 타당성 및 유효성을 확보하기 위하여 투과성 구조물를 통과하는 댐 붕괴파의 전파특성에 관한 수리모형실험과 계산결과를 비교ㆍ분석하였다. 투과성 잠제를 고려한 방류시뮬레이션으로부터 투과성 잠제의 적절한 형상 및 평면배치는 방류유속을 저감하고 흐름을 유도하는 데 상당히 효과적인 것을 알 수 있었다. 또한 투과성 잠제의 형상 및 평면배치에 따른 흐름제어에 대한 적용성은 평균류분포, 연직유속분포를 통하여 확인할 수 있었다.

키워드
투과성 잠제
방류
흐름제어
흐름유도
3차원 수치모델
References
1
Brackbill, J.U., Kothe, D.B., and Zemach, C. (1992). “A continuum model for modeling surface tension.” Journal of Com-putational Physics, Vol. 100, pp. 335-354.
2
Caceres, I., Stive, M.J.F., Sanchez-Arcilla, A., and Trung, L.H. (2008). “Quantification of changes in current intensities induced by wave overtopping around low crested structures.” Coastal Eng., Vol. 55, pp. 113-124.
3
Cho, W.C. (2004). “Wave screening performance of the submerged breakwater with various crown widths.” Journal of Korean Society of Coastal and Ocean Engineers, Vol. 16, No. 4, pp. 206-212(in Korean).
4
Cho, Y.S., and Jeong, W.C. (2003). “Analysis of bragg reflection of waves due to rectangular impermeable submerged breakwaters with two-dimensional finite element method.” Journal of Korea Water Resources Association, Vol. 36, No. 3, pp. 447-454(in Korean).
5
Ergun, S. (1952). “Fluid flow through packed columns.” Chemical Engineering Progress, Vol. 48, No. 2, pp. 89-94.
6
Garcia, N., Lara J.L., and Losada, I.J. (2004). “2-d numerical analysis of near-field flow at low-crested permeable beak-water.” Coastal Eng., Vol. 51, pp. 991-1020.
7
Germano, M., Piomelli, U., Moin, P., and Cabot, W.H. (1991). “A dynamic subgrid-scale eddy viscosity model.” Physics of Fluids, Vol. 3, pp. 1760-1765.
8
Hsu, T.W., Hsieh, C.M., and Hwang, R.R. (2004). “Using RANS to simulate vortex generation and dissipation around impermeable submerged double breakwaters.” Coastal Eng., Vol. 51, pp. 557-579.
9
Hur, D.S. (2004). “Deformation of multi-directional random waves passing over an impermeable submerged breakwater installed on a sloping bed.” Ocean Eng., Vol. 31, pp. 1295-1311.
10
Hur, D.S., Cho, W.C., Yoon, J.S., Kim, I.H., and Lee, W.D. (2014). “Control technologies in reducing rip currents around the open inlet between two submerged breakwaters.” Journal of Coastal Research: Special Issue 72 - The 3rd International Rip Current Symposium, pp. 75-80.
11
Hur, D.S., Lee, K.H., and Choi, D.S. (2011). “Effect of the slope gradient of submerged breakwaters on wave energy dissi-pation.” Engineering Applications of Computational Fluid Mechanics, Vol. 5, pp. 83-98.
12
Hur, D.S., Lee, W.D., and Cho, W.C. (2012a). “Three-dimensional flow characteristics around permeable submerged breakwaters with open inlet.” Ocean Eng., Vol. 44, pp. 100-116.
13
Hur, D.S., Lee, W.D., and Cho, W.C. (2012b). “Characteristics of wave run-up height on a sandy beach behind dual-submerged breakwaters.” Ocean Eng., Vol. 45, pp. 38-55.
14
Johnson, H.K. (2006). “Wave modelling in the vicinity of sub-merged breakwaters.” Coastal Eng., Vol. 53, pp. 39-48.
15
Johnson, H.K., Karambas, T.V., Avgeris, I., Zanuttigh, B., Gonzalez-Maroco, D., and Caceres, I. (2005). “Modelling of waves and currents around submerged breakwaters.” Coastal Eng., Vol. 52, pp. 949-969.
16
Kim, N.H., and Woo, S.M., (2012). “The boundary element analysis of waves coming with oblique angle to a submerged breakwater.” Journal of the Korean Society of Civil Engineers, Vol. 32, No. 5B, pp. 295-300(in Korean).
17
Koraim, A.S., Heikal, E.M. and Abo Zaid, A.A. (2014). “Hydro-dynamic characteristics of porous weawall protected by submerged breakwater.” Applied Ocean Research, Vol. 46, pp. 1-14.
18
Kramer, M., Zanuttigh, B., van der Meer, J.W., Vidal, C. and Gironella, F.X. (2005). “Laboratory experiments on low- crested breakwaters.” Coastal. Eng., Vol. 52, pp. 867-885.
19
Lee, W.D., and Hur, D.S. (2014a). “Development of a 3-d Coupled hydro-morphodynamic model between numerical wave tank and morphodynamic model under wave-current inter-action.” Journal of the Korean Society of Civil Engineers, Vol. 34, No. 5, pp. 1463-1476(in Korean).
20
Lee, W.D., and Hur, D.S. (2014b). “Development of 3-d hydro-dynamical model for understanding numerical analysis of density current due to salinity and temperature and its verification.” Journal of the Korean Society of Civil Engineers, Vol. 34, No. 3, pp. 859-871(in Korean).
21
Lee, W.D., Hur, D.S. and Suh, S.B. (2011). “A numerical simulation on three-dimensional hydrodynamic characteristics of wave height and flow around asymmetric submerged breakwaters.” Journal of Ocean Engineering and Technology, Vol. 25, No. 3, pp. 19-27(in Korean).
22
Lilly, D.K. (1992). “A proposed modification of the Germano subgrid-scale closure method.” Physics of Fluids, Vol. 4, pp. 633-635.
23
Liu, L.-F., Lin, P., Chang, K.A., and Sakakiyama, T. (1999). “Numerical modeling of wave interaction with porous structures.” J. Waterway, Port, Coastal, Ocean Eng. ASCE, Vol. 125, No. 6, pp. 322-330.
24
Liu, S., and Masliyah, J.H. (1999). “Non-linear flows in porous media.” Journal of Non-Newtonian Fluid Mechanics, Vol. 86, pp. 229-252.
25
Losada, I.J., Patterson, M.D., and Losada, M.A. (1997). “Harmonic generation past a submerged porous step.” Coastal Eng., Vol. 31, pp. 281-304.
26
Sakakiyama, T., and Kajima, R. (1992). “Numerical simulation of nonlinear wave interacting with permeable breakwater.” Proc. 22nd Intl. Conf. on Coastal Eng., ASCE, pp. 1517- 1530.
27
Sharifahmadian, A., and Simons, R.R. (2014). “A 3d numerical model of nearshore wave field behind submerged break-waters.” Coastal Eng., Vol. 83, pp. 190-204.
28
Smagorinsky, J. (1963). “General circulation experiments with the primitive equation.” Monthly Weather Review, Vol. 91, pp. 99-164.
29
Zanuttigh, B. (2007). “Numerical modelling of the morphological response induced by low-crested structures in Lido di Dante, Italy.” Coastal Eng., Vol. 54, pp. 31-47.
30
Zysermana, J.A., Johnson, H.K., Zanuttigh, B. and Martinelli, L. (2005). “Analysis of far-field erosion induced by low- crested rubble-mound structures.” Coastal Eng., Vol. 52, pp. 977-994.
Information
  • Publisher :KOREA WATER RESOURECES ASSOCIATION
  • Publisher(Ko) :한국수자원학회
  • Journal Title :Journal of Korea Water Resources Association
  • Journal Title(Ko) :한국수자원학회 논문집
  • Volume : 49
  • No :1
  • Pages :51-60
  • Received Date : 2015-10-14
  • Revised Date : 2015-11-19
  • Accepted Date : 2015-11-19
  • DOI :https://doi.org/10.3741/JKWRA.2016.49.1.51
Journal Informaiton Journal of Korea Water Resources Association Journal of Korea Water Resources Association
Online Submission
Archives
  • scopus
  • KCI-수자원
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close