Flow Characteristic Variations on Groyne Types for Aquatic Habitats

DOI: 10.4236/eng.2012.411103   PDF   HTML     3,545 Downloads   5,297 Views   Citations

Abstract

The field formed by groyne has the function of aquatic habitats for the underwater biology. The characteristic of groyne field occurring around downstream of groyne depends on groyne type and shape. Thus to maximize the function of groyne, it needs to understand the flow characteristic around groyne. In this study, experiment model test was conducted in recirculation zone located in downstream of groyne. Groyne types for experiment are three: permeable, impermeable and inclined crest groyne. LSPIV (Large Scale Particle Image Velocimetry) is used to measure flow field around the groyne and it revealed flow characteristic in recirculation zone at each case. In order to estimate the aquatic habitats of groyne fields, critical swimming speed of major fleshwater fish in Korea was compared with the variation of velocity distribution in groyne fields. From the results, the rate of velocity decreases in groyne fields, V/Vapp were measured to be 0 to 0.5 and the results can be fundamental data which are used to estimate the aquatic habitable function of groyne.

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J. Kang, H. Yeo and S. Jung, "Flow Characteristic Variations on Groyne Types for Aquatic Habitats," Engineering, Vol. 4 No. 11, 2012, pp. 809-815. doi: 10.4236/eng.2012.411103.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] J. R. Francis, A. Pattanick and S. Wearne, “Observations of Flow Patterns around Some Simplified Groyne Structures in Channels,” Technical Note No. 8, Proceedings of Institution of Civil Engineers, London, December 1968, pp. 829-846.
[2] N. Rajaratnam and B. Nwachukwu, “Flow Near GroyneDike Structures,” Journal of Hydraulic Division, Vol. 109, No. HY3, 1983, pp. 463-480. doi:10.1061/(ASCE)0733-9429(1983)109:3(463)
[3] T. Tingsanchali and S. Maheswaran, “2D Depth-Averaged Flow Computation near Groyne,” Journal of Hydraulic Engineering, Vol. 116, No. 1, 1990, pp. 71-86. doi:10.1061/(ASCE)0733-9429(1990)116:1(71)
[4] J. G. Kang, H. K. Yeo and S. J. Kim, “An Experimental Study on Tip Velocity and Downstream Recirculation Zone of Single Groyne Conditions,” Journal of Korea Water Resources Association, Vol. 38, No. 2, 2005, pp. 143153. doi:10.3741/JKWRA.2005.38.2.143
[5] R. Ettema and M. Muste, “Scale Effects in Flume Experiments on Flow around a Spur Dike in Flatbed Channel,” Journal of Hydraulic Engineering, Vol. 130, No. 7, 2004, pp. 635-646. doi:10.1061/(ASCE)0733-9429(2004)130:7(635)
[6] F. W. H. Beamish, “Swimming Capacity,” Fish Physiology, Vol. 7, 1978, pp. 101-187. doi:10.1016/S1546-5098(08)60164-8
[7] J. R. Brett, “The Respiratory Metabolism and Swimming Performance of Young Sockeye Salmon,” Journal of Fisheries Research Board of Canada, Vol. 21, No. 5, 1964, pp. 1183-1226. doi:10.1139/f64-103

  
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