摘要

通過MIKE軟件為圍頭灣區(qū)域建立數(shù)值模型，完成對模擬區(qū)域水流動力條件的模擬，并通過臨時測站的實測水位流速數(shù)據(jù)對模型進(jìn)行驗證。驗證結(jié)果良好，模型可以準(zhǔn)確反映工程區(qū)域的水流動力條件。通過模型對五種寬度口門工況進(jìn)行模擬計算，對結(jié)果加以分析得出各工況下口門流速分布及納潮量變化，針對工程一期圍墾方案，模擬計算龍口合龍過程流速及水位變化，藉此對口門施工方案對水動力條件的影響作出評價。

關(guān)鍵詞: MIKE;數(shù)值模型;模型驗證;口門寬度;龍口合攏

ABSTRACT

MIKE 21 FM is adopted to build numerical module for Weitou Bay to forecast and estimate the hydrodynamics conditions of the whole waters under research. The results have been confirmed to be reliable for actual project in comparation with actual measurement collected by temporary hydrological stations set in the researched area.The paper simulated five different working conditions which vary in the entrance width.The velocity between the harbor entrance is obtained and the tidal influx before and after the project is calculated.Taking consideration of the first stage of the land reclamation project,The velocity and water level during the progress of cofferdam closure are simulated.Some conclusions are acquired on the impact of project construction on hydrodynamic conditions.

Key words: MIKE;hydrodynamic module; module confirmation;harbor entrance length;cofferdam closure。。。。。。