Browse > Article
http://dx.doi.org/10.9765/KSCOE.2017.29.6.410

Prediction of Mean Water Level Rise Behind Low-Crested Structures and Outflow Velocity from Openings by Using a Hybrid Method Based on Two Dimensional Model Test and Hydrodynamic Numerical Modeling  

Lee, Dal Soo (HYEIN E&C Co., Ltd.)
Lee, Ki-Jae (HYEIN E&C Co., Ltd.)
Yoon, Jae Seon (Rural Research Institute, Korea Rural Community Corporation)
Oh, Sang-Ho (Coastal Engineering Division, Korea Institute of Ocean Science &Technology)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.29, no.6, 2017 , pp. 410-418 More about this Journal
Abstract
The stability of low-crested structure (LCS) and overtopping discharge over a seawall behind the LCS are influenced by the water level behind the structure. Hence, the experimental results can be distorted unless the increase of water level is known when two-dimensional experiment is carried out. In order to estimate increase of the mean water level behind the low-crested structure, this study applied a hybrid technique that combined results of two-dimensional model test and hydrodynamic numerical modeling based on the relationship between the water level and discharge. By using this technique, the mean water level increase and flow field can be obtained almost at the same time, which resolved the above problem considerably. In addition, this method can provide an approximate information about the outflow velocity from the openings of the structure, which is helpful for selecting appropriate planar configuration of the low-crested structure.
Keywords
low-crested structure; water level rise; outflow velocity; breakwater design; offshore breakwater; hybrid method;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Hur, D.S. and Kim, D.S. (2003). Numerical Simulation of Velocity Fields and Vortex Generation around the Submerged Breakwater on the Sloped Bottom. Journal of Korean Society of Coastal and Ocean Engineers, 15(3), 151-158.
2 Hur, D.S., Lee, W.D. and Cho, W.C. (2012). Three-dimensional flow characteristics around permeable submerged breakwaters with open inlet. Ocean Engineering, 44, 100-116.   DOI
3 Hur, D.S., Lee, W.D., Kim, M.K. and Yoon, J.S. (2013). Application of 3-D Numerical Method (LES-WASS-3D) to Estimation of Nearshore Current at Songdo Beach with Submerged Breakwaters. Journal of Ocean Engineering and Technology, 27(4), 14-21 (in Korean).   DOI
4 Hur, D.S., Lee, W.D., Goo, N.H., Jeon, H.S. and Jeong, Y.M. (2017). Development of New Thpe of Submerged Breakwater for Reducing Mean Water Level behind Structure. Journal of Ocean Engineering and Technology, 31(2), 130-140 (in Korean).   DOI
5 Lee, K.H., Bae, J.H., An, S.W., Kim, D.S. and Bae, K.S. (2016). Numerical Analysis on Wave Characteristics around Submerged Breakwater in Wave and Current Coexisting Field by OLAFOAM. Journal of Korean Society of Coastal and Ocean Engineers, 28(6), 332-349.   DOI
6 Ruol, P., Faedo, A. and Paris, A. (2005). Physical model study of water piling-up behind low-crested structures. Proceedings of International Conference on Coastal Engineering, 4165-4177.
7 Zanuttigh, B. (2007). Numerical Modelling of the Morphological Response Induced by Low-Crested Structures in Lido di Dante, Italy. Coastal Engineering, 54(1), 31-47.   DOI
8 Zanuttigh, B., Martinelli, L. and Lamberti, A. (2008). Wave overtopping and piling-up at permeable low crested structures. Coastal Engineering, 55(6), 484-498.   DOI
9 d'Angremond, K., Van Der Meer, J.W. and De Jong, R.J. (1997). Wave transmission at low-crested structures. Proceedings of International Conference on Coastal Engineering, 2418-2427.
10 Cappietti, L., Clementi, E., Aminti, P. and Lamberti, A. (2007). Piling-up and filtration at low crested breakwaters of different permeability. Proceedings of International Conference on Coastal Engineering, 4957-4969.
11 Dean, R.G., Chen, R. and Browder, A.E. (1997). Full scale monitoring study of a submerged breakwater, Palm Beach, Florida, USA. Coastal Engineering, 29(3-4), 291-315.   DOI
12 De Waal, J.P. and Van der Meer, J.W. (1993). Wave runup and overtopping on coastal structures. Proceedings of International Conference on Coastal Engineering, 1758-1771.