查詢結果分析
來源資料
頁籤選單縮合
| 題 名 | 兩前進波傳遞於斜坡底床之理論與試驗研究=Theoretical and Experimental Study of Two Progressive Waves Propagating on a Sloping Bottom |
|---|---|
| 作 者 | 陳陽益; 楊炳達; 李孟學; | 書刊名 | 海洋工程學刊 |
| 卷 期 | 14:1 2014.03[民103.03] |
| 頁 次 | 頁15-33 |
| 分類號 | 351.941 |
| 關鍵詞 | 非線性波; 淺化; 底床效應; 兩波交會; 試驗; Nonlinear wave; Shoaling; Bottom effect; Wave-wave interaction; Experiment; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究針對兩前進波傳遞於斜坡底床之現象,進行理論解析及試驗研究。波動場藉由兩前進波個別的非線性參數ε_1, ε_2,以及底床坡度α,進行三攝動展開,再系統化求解至顯式的三階解。解析結果包含非線性兩波交互作用、波浪淺化以及底床坡度效應等特性。針對短波週波率受長波影響的調變特性進行分析,發現底床坡度效應亦會有所影響,其中以回流造成的影響最大。藉由探討水位的變化,可得知前述特性於波動中的影響程度。最後進行試驗驗證,結果顯示除已有碎波發生之狀況外,試驗與理論結果相當符合。 |
| 英文摘要 | This study derived an analytic solution for two progressive waves propagating on a sloping bottom. The solution of flow field in explicit form is obtained as a three-parameter function of rendering the two wave ordering parameter ε_1, ε_2 and the bottom slope perturbed to the third order. The solutions include the wave-wave interaction, wave shoaling, nonlinearity, and the effect of bottom slope. The angular frequency are also affected by another propagating wave, the increasing wave steepness or wave length of which will enhance the influence of the dispersion relation. Those are observed by means of the discussion of the free-surface displacement. For verifying our theory, a series of experiments was done. Except for wave breaking, the theoretical results agree well with the experimental data. |
本系統中英文摘要資訊取自各篇刊載內容。