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題 名 | 二維與三維水理數值模式在淡水河口海域之應用與比較=Application and Comparison of Two-and Three-Dimensional Hydrodynamic Models in Tamshui Estuary and Coastal Sea |
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作 者 | 劉景毅; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 11:3 1999.09[民88.09] |
頁 次 | 頁579-587 |
分類號 | 443.1 |
關鍵詞 | 二維與三維數值模式; 水動力; 河口海域; Two-and three-dimensional numerical models; Hydrodynamics; Estuary; |
語 文 | 中文(Chinese) |
中文摘要 | 本文旨在探討二維與三維水理數值模式應用於河口海域之差異性。本文分別建 立二維與三維水理數值模式,再以本文於淡水河口海域量測所得之海流資料做模式檢核。模 擬結果顯示在離河口較遠之測站,二維與三維水理模式的表現相當一致,均可相當準確的模 擬測站所在海域之流況。但在距離河口較近之測站,由於斜壓現象與上、下水層間的流速差 較大,因此模擬結果顯示三維模式比二維模式可更精準的重現淡水河口海域之流場。 |
英文摘要 | The objective of this research is to study the performance of two-and three-dimensional numerical hydrodynamic models in estuary and coastal sea. Firstly, two-and three-dimensional hydrodynamic models were established and calibrated by field data observed in the coastal sea of Tamshui. The comparison of their performance shows that in the station far from river mouth both two-and three-dimensional models can accurately simulate the hydrodynamic characteristics of the study area, while in the station near river mouth, the three-dimensional model can more accurately reproduce the hydrodynamic characteristics than the two-dimensional model, due to the baroclinic effect and strong vertical variation of current speed. |
本系統中英文摘要資訊取自各篇刊載內容。