Browse > Article
http://dx.doi.org/10.3741/JKWRA.2009.42.9.715

An Experimental Study on Flow Characteristic Around Inclined Crest Groyne  

Kang, Joon-Gu (Coastal and Harbor Research Division, Korea Institute of Construction Technology)
Kim, Sung-Jung (Coastal and Harbor Research Division, Korea Institute of Construction Technology)
Yeo, Hong-Koo (Coastal and Harbor Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korea Water Resources Association / v.42, no.9, 2009 , pp. 715-724 More about this Journal
Abstract
In case of inclined crest groyne, flow constriction with water is different. Therefore, it is proper to apply to narrow channel or there is a risk of overflow with water level rising caused by installation of groynes. This study were conducted experiments on inclined crest groyne. Main factors of inclined crest groyne are angles of crests slope and changes of water level. Velocity profile around groyne was measured by LSPIV (Large Scale Particle Image Velocimetry). Flow fields around groyne were analyzed focused on main channel and recirculation area. From the results, Thalweg change has little an effect on rate length and height of recirculation rises on increasing rate length. Length of recirculation area was about 12$\sim$16 times of rate length of groyne. Maximum velocity in main channel area was measured about 1.45$\sim$2.1 times of approach velocity and has little an effect on crest angle of groyne. Back water velocity recirculation area was decreased on approach velocity. This result presents to make stable flow to bank protection.
Keywords
inclined crest groyne; crest angle; thalweg; recirculation area;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 강준구, 여홍구, 노영신 (2006). “수제 설치간격에 다른 수제주변 흐름특성에 관한연구.” 대한토목학회논문집, 대한토목학회, 제26권, 제3B호, pp. 271-278
2 강준구, 여홍구, 김성중 (2005). “단일 횡수제 조건에 따른 선단부 유속과 재순환 영역에 대한 실험 연구.” 한국수자원학회논문집, 한국수자원학회, 제38권, 제2호, pp. 143-153   과학기술학회마을   DOI
3 여홍구, 노영신, 강준구, 김성중 (2006). “단일수제 설치에 따른 흐름중심선과 흐름분리영역의 변화.” 한국수자원학회논문집, 한국수자원학회, 제39권, 제4호, pp. 313-320   과학기술학회마을   DOI
4 한국건설기술연구원 (2005). 다기능 하천설계기준사업, 건기연 2005-075
5 Acheson, A. R. (1968). River Control and Drainage in New Zealand. Ministry of Works, New Zealand
6 Federal Highway Administration. (1984). Selection and Design of Flow Control and Streambank Stabilization Structures. Report No. FHWA/RD- 83/099, Washington, D.C
7 Federal Highway Administration. (1985). Design of Spur-type Streambank Stabilization Structures. U.S. DOT, FHWA, Rep. No. FHWA/RD 84/101, McLean, VA
8 Jansen, P. Ph., et al. (1979). Principles of River Engineering: The Non-Tidal Alluvial River, Pitman Publishing Limited, London
9 Richardson, E. V., and Simons, D. B. (1974). Spurs and Guide Banks. Open File Report, Colorado State University Engineering Research Center, Fort Collins, Colorado, February
10 Uijttewaal, W. S. J. (2005). “Effects of Groyne Layout on the Flow in Groyne Fields: Laboratory Experiments.” Journal of Hydraulic Engineering, ASCE. Vol. 131, pp. 781-791   DOI   ScienceOn
11 Ettema, R., Muste, M. (2004). “Scale Effects in Flume Experiments on Flow around a Spur Dike in Flatbed channel.” Journal of Hydraulic Engineering, ASCE, Vol. 130, pp. 635-646   DOI   ScienceOn
12 Franco, J. J. (1966). Laboratory Research on Design of Dikes for River Regulation. Miscellaneous Taper No. 2-860, U.S. Army Engineers Waterways Experiment Station, Vicksburg, Mississippi, November