跳到主要內容

臺灣博碩士論文加值系統

(44.200.171.74) 您好!臺灣時間:2022/08/12 19:23
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

我願授權國圖
: 
twitterline
研究生:黃永志
研究生(外文):Huang Yong-Chize
論文名稱:透水性薄板結構物對波浪消減效果之研究
論文名稱(外文):The Study of Vertical Porous Thin Plates to Reduce Water Waves Effect
指導教授:岳景雲
指導教授(外文):Yueh Ching-Yun
學位類別:碩士
校院名稱:國立海洋大學
系所名稱:河海工程學系
學門:工程學門
學類:河海工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:87
中文關鍵詞:透水性薄板波浪消減
外文關鍵詞:porousthin plateswavesReduce
相關次數:
  • 被引用被引用:0
  • 點閱點閱:161
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
在半無限長水域一定水深之海域裡,設置四種不同型態之透水性垂直薄板結構物,第一種是在水面處設置剛性垂直透水薄板結構物,第二種是固定於海底的剛性垂直透水薄板結構物,第三種是潛沒於水中之剛性垂直透水薄板結構物,第四種是第一及第二種型態的結合型,即分別於水面及海底均設置有剛性垂直透水薄板結構物而中間空置之型態。
本文考慮的是線性規則波波浪正向入射透水薄板結構物,主要是以複合邊界元素法(Composite Boundary Element Method, CBEM)來計算在半無限長水域中波浪通過四種不同型態浸水剛性垂直透水薄板結構物的反射率與能量損失之大小,並比較各種型態之透水薄板結構物,在透水性質上消波效果之比較,以期找出消波效果較佳之配置與範圍。
經由數值計算後比較發現,第一種型式之透水薄板結構物設置在距岸壁0.5倍水深處,深度大於一半水深左右且G值為0.5時,可針對波浪條件kh=1.1~4.0的範圍,產生低反射率及高能量損失之最佳效果出現。

The effects of wave energy reducing for two-dimensional linear waves by vertical porous thin plates in a semi-infinite long channel with constant depth are studied in this thesis wave theory. Four different configurations of the plates are respectively, including, (a) a surface-piercing porous barrier. (b) a bottom-standing porous barrier. (c) a totally submerged porous barrier. (d) a porous barrier with a single gap.
The Composite Boundary Element Method (CBEM) is applied to study the effects of reflection and energy loss for the four configurations and comparisons of the G parameter (the porous effect parameter) were made to find the more effective configurations and the parameter ranges.
Comparing about the numerical results, we believe that the first type was the best configuration when the interval between the porous thin plates and wall was half of water depth, vertical depth more than half of water depth and parameter G equivalent 0.5. It obtains low reflection and high energy loss.

目錄
-------------
中文摘要
英文摘要
圖目錄
符號說明
第一章 緒論
1-1前言
1-2前人研究
1-3本文內容
第二章 線性波浪理論解析
2-1基本假設
2-2領域(Ⅰ)、(Ⅲ)之勢函數表示
2-3邊界條件
2-4反射率(R)及透過率(T)
2-5勢函數之解析
2-6複合邊界元素法(CBEM, 領域(Ⅱ)之勢函數表示
2-7反射率|R|與透過率|T|之求解
第三章 數值計算步驟及模式驗證
3-1數值計算步驟
3-2模式驗證
3-2-1 無限長水域,全遮蔽式透水薄板結構物
3-2-2 無限長水域,半遮蔽式透水薄板結構物
3-2-3 半限長水域,全遮蔽式透水薄板結構物
第四章 數值計算例與結果分析討論
4-1本文透水薄板結構物定義圖
4-2數值計算例
4-3結果分析討論
第五章 結論
參考文獻
謝誌
作者簡歷

參考文獻
1.涂盛文、林東廷(1990),”孔隙板對微小振幅波之影響”,港灣技術第
五期,Vol. 5, pp.95~124
2.Abdul Khader, M. H. and Rai, S. P. (1980),”A Study of
Submerged Breakwaters” J. Hydr. Res, IAHR, Vol. 18, No. 2,
pp.113-121.
3.Abul-Azm, A.g. (1993),”Wave Diffraction through Submerged
Breakwaters” J. Wtwy., Port, Coast. And Oc. Engrg., Vol.119,
No. 6, ASCE, pp.587-605.
4.Dick, T. M. and Brebner, A. (1968).”Solid and Permeable
Submerged Breakwaters” Proc. 11th Conf. On Coastal
Engineering, ASCE, New York, N. Y., II, pp.1141-1158.
5.Evans, D.V. and Morris, C. A. N. (1972),“The Effect of a
Fixed Vertical Barrier on Obliquely Incident Surface Waves in
Deep Water” J. Inst. Maths Applics, 9, pp.198-204.
6.Guiney, D. C., Noye, B. J. and Tuck, E. O. (1972),”
Transmission of Water Waves througn Small Apertures” J.
Fluid Mech., Vol. 55, No.1, pp.149-161.
7.Johnson, J. W., Fuchs, R. A. and Morison, J. R. (1951),”The
Damping Action of Submerged Breakwaters” Trans. Amer. Geoph.
Union, Vol.32, No. 5, pp.704-718.
8.Lee, M.M. and A. T. Chwang (2000) “Scattering and Radiation
of Water Waves by Permeable Barriers,” Physics of Fluids.,
Vol. 12, pp.54-65.
9.Liu, P. L-F. and Abbaspour, M. (1982),”Wave Scattering by a
Rigid Thin Barrier” J.Wtwy., port, Coast. And Oc. Engrg.,
ASCE, Vol. 108, No. 4, pp.479-491.
10.Liu, P. L-f and Wu, J. (1987),”Wave Transmission through
Submerged Apertures” J. Wtwy., port, Coast. And Oc. Engrg.,
Vol. 113, No. 6, November, pp.660-671.
11.Losada I. J., Losada, M. A. and Roldan, A. J. (1992),”
Propagation of Oblique Incident Waves Past Rigid Vertical
Thin Barriers” Applied Ocean Research, Vol. 14, pp.191-199.
12.Michael I. (1998),”Wave Interaction with Vertical Slotted
Barrier” J. Wtwy., Port, Coast. And Oc. Engrg., Vol.124, No
3, ASCE, pp.118-126.
13.Porter, R. and Evans, D. V. (1995)”Complementary
Approximations to Wave Scattering by Vertical Barriers” J.
Fluid Meth., Vol.294, pp.155-180.
14.Sollitt, C. K.and R. H. Cross (1972) "Wave Transmission
through Permeable Breakwaters," Proc. 13th Conf. on Coastal
Eng. ASCE., Vancouver, Canada, pp.1827-1846.
15.Ursell, F. (1947), “The Effect of a Fixed Vertical Barrier
on Surface Waves in Deep Water” Proc., Cambridge
Philosophical Soc., Vol.43, No. 3, pp.374-382.
16.Wiegel, R. L. (1960), “Transmission of Wave Past a Rigid
Vertical Thin Barrier” J., Wtey., Port, Coast. And Oc.
Engrg., Asce, Vol.86, No. 1, pp.1-12.
17.Yu X-P. (1995) "Diffraction of Water Waves by Porous
Breakwaters," J. Waterway, Port, Coastal and Ocean Eng.,
pp.275-282.

QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top