Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/16292
標題: 具消波艙室開孔防波堤之實驗研究
Experiments of perforated breakwater with a wave-absorbing chamber
作者: 林建志
Lin, Jian-Chih
關鍵字: breakwater
防波堤
wave-absorbing chamber
peforated
消波艙
開孔
出版社: 土木工程學系所
引用: 1.謝世楞、李炎保、吳永強、谷漢斌(2006) “圆弧面防波堤波浪力初步研究”,海洋工程,Vol. 24, No.1, 14-18. 2.Hoquea, A., Aoki, S., (2008) “Air entrainment and associated energy dissipation in steady and unsteady plunging jets at free surface,” Proc. Ocean Research 30 37–45 3.Chen, X., Li, Y., Teng, B., (2006.) “Numerical and simplified methods for the calculation of the total horizontal wave force on a perforated caisson with a top cover.” Coastal Engineering, Vol. 54, Issue 1, January 2007, Pages 67-75 4.Goda, Y., Suzuki, Y., (1976), “Estimation of incident and reflected waves in random wave experiments.” Proc. 15th Coastal Engineering Conference, Hawaii. pp. 828–845. 5.Goda, Y. (1985),“Random Seas and Design of Maritime Structures,” University of Tokyo Press, Tokyo, Japan. 6.Hirt, C.W., Nichols, B.D., (1981.) “Volume of fluid method for the dynamics of free boundaries.” Journal of Computational Physics 39, 201– 225. 7.Jarlan, G.E., (1961.), “A perforated vertical wall breakwater.” Dock & Harbour Authority 41 (486),394–398. 8.Lemos, C.M., (1992.) “A simple numerical technique for turbulent flow with free surface.” International Journal for Numerical Methods in Fluids 15, 127– 146. 9.Li, Y.C., Dong, G.H., Liu, H.J., Sun, D.P., (2003.), “The reflection of oblique incident waves by breakwaters with double-layered perforated wall.” Coastal Engineering, Vol. 50, 47–60. 10.Liu, Y., Li, Y., Teng, B., Jiang, J., Ma, B., (2008.), “Total horizontal and vertical forces of irregular waves on partially perforated caisson breakwaters.” Coastal Engineering, Vol. 55, 537–552 11.Mansard, E.P.D., Funke, E.R., (1980.), “The measurement of incident and reflected spectra using a least square method.” Proc. of 15th Coastal Engineering Conference 1, 154–172. 12.Marks, W. and Jarlan G. E. (1968), “Experimental studies on a fixed perforated breakwater,” Proc. of 11th Conf. on Coastal Engineering chapter 71, pp. 1121~1140. 13.Sekiguchi, S.I., Miyabe, S., Yamamoto, Y., Miwa, T., (2002.) “Development of a sloping-slit caisson breakwater.” Coastal Engineering Journal, Vol. 44, No. 3, 203 - 215. 14.Suh, K.D., Park, W.S., (1995.), “Wave reflection from perforated-wall caisson breakwaters.” Coastal Engineering, Vol. 26,177–193. 15.Suh, K.D., Park, W.S., Park, J.K. (2006), “Wave reflection from partially perforated-wallcaisson breakwater,” Proc. Ocean Engineering, Vol. 33, 264–280. 16.Tanimoto and Yoshimoto, 1982. K. Tanimoto and Y. Yoshimoto, “Theoretical and experiment study of reflection coefficient for wave dissipating caisson with a permeable front wall.” Report of Port and Harbour Research Institute 21 3 (1982), pp. 43–77 17.Takahashi, S. (1999), “Failure of composite breakwaters in Japan,” Proc. Lect. Port Harbar Res Inst. 18.Williams, A.N., Mansour, A.E.M., Lee, H.S., (2000.) “Simplified analytical solutions for wave interaction with absorbing-type caisson breakwaters.” Ocean Engineering 27, 1231–1248. 19.Yakhot, V., and Orszag, S. A. (1986.), “Renormalization group analysis of turbulence.” Journal of Scientific Computing 1, pp. 3–51. 20.Yakhot, V., and Smith, L.M., (1992.), “The renormalization group, the ε-expansion and derivation of turbulence models.” Journal of Scientific Computing 7, pp. 35–61.
摘要: 本文旨在探討波浪入射具消波艙室之前壁面開孔防波堤之現象,主要以水工模型試驗進行研究。此開孔胸牆防波堤具有上方斜面開孔及下方直立面開孔之特性。而其結果與Flow-3D模擬之結果進行比較,其研究內容包括波形、波高歷時曲線、波壓歷時曲線,結果顯示與數值模擬之趨勢相當吻合。波浪反射率及堤壁面波壓分佈之分析顯示,在消波艙室之能量消散作用下,可以發現波浪反射率及波壓都有消減的效果。結果顯示在固定開孔率之情況下,波浪反射率會隨著消波艙之相對寬度的改變出現最小值。在固定消波艙之相對寬度下,波浪反射率會隨著波浪尖銳度的增加而降低。但在壁面之靜水面壓力會隨波浪尖銳度增加而變大。
In this thesis, a series of experiments were conducted for the investigations of the wave characteristics in front of a caisson breakwater with wave-absorbing chamber. The perforated wall of the wave chamber consists of sloping-slit in the upper part and vertical-slit in the lower part. In the experiments, both the time history of wave profiles and the wave pressures at the wall of caisson were measured, and compared with the numerical simulations using CFD code, Flow-3D. The experimental results show in very good agreement with the numerical results. The wave reflection from the breakwater and the wave pressure distribution on the wall were analyzed. Due to energy dissipation induced by the wave chamber, it was found that not only the wave reflection was reduced but the wave pressure was also reduced. The results showed that the wave reflection decreased with the relative width of the wave chamber to a minimum value then increased, for a fixed porosity of the perforated wall. For a fixed relative width of the wave chamber, the wave reflection decreased with the incident wave steepness. But the maximum wave pressure on the wall at the mean water level increased with the incident wave steepness.
URI: http://hdl.handle.net/11455/16292
其他識別: U0005-2308201011473200
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-2308201011473200
Appears in Collections:土木工程學系所

文件中的檔案:

取得全文請前往華藝線上圖書館



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.