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題 名 | 不規則波與水流共存時緩坡方程式之探討=A Study on Mild-Slope Equation of Random Waves with Currents |
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作 者 | 林銘崇; 許朝敏; | 書刊名 | 力學 |
卷 期 | 15:2 1999.12[民88.12] |
頁 次 | 頁95-102 |
分類號 | 351.941 |
關鍵詞 | 不規則波; 緩坡方程式; 水流; Random waves; Mild-slope equation; Currents; |
語 文 | 中文(Chinese) |
中文摘要 | 為瞭解海底緩變區域不規則波與水流共同效應所造成的複雜波況,本研究之主要 目的即提供一不規則波與水流共存時之緩坡方程式, 藉以探討此問題。 本文主要以 Booij[1] 所推導之含流緩坡方程式為基礎,導入 Kubc 等人 [2] 之不規則波解析觀念,將 每一成份波頻率表示為一代表波頻率及此成份波對代表頻率偏差量之和,推導一描述不規則 波與水流交互作用之緩坡方程式,以有限差分法進行數值計算,根據此計算結果,初步探討 該緩坡方程式之適用性。 |
英文摘要 | We tried to derive a governing equation, which can handle the complicated phenomena of random waveswith the presence of currents in mildslope nearshoreseas. The equation was developed based on the mildslope equation with current effects derived by Booij [1].Using the idea proposed by Kubo et al. [2], every frequency of the random waves was represented by a typical frequency and its deviating part. Finally wegot a governing equation, which could describe the problems of random waves with the presence of currents in mild-slope nearshore seas. To validate the governing equation, some numerical experiments were made using finite-difference method. According to the calculated results, it was found the equation has good adaptability. |
本系統中英文摘要資訊取自各篇刊載內容。