摘要
本文利用风浪要素计算方法 ,依波能流守恒法则 ,建立了一个由风要素计算港湾沿岸输沙率的数学模式 :Ql=1 .90 6× 1 0 -8g-0 .97F1.0 3 u2 .94cos1.2 α0 sinα0 (m3 /s) .这模式对于缺乏测波资料的风速较小 ,水深较大 ( gd/u2 )的海湾、湖泊等环境的沿岸输沙率求算具有实用价值 .与现有主要几种计算沿岸输沙率的数模和方法进行计算比对 ,本文模式的计算结果有较好可信性与准确性 .
A mathematical model of calculating longshore sediment transport rate was established on the basis of non dimensional wind wave calculation and according to the law of wave energy flux conservation. It is expressed as: Q l=1.906×10 -8 g -0.97 F 1.03 u 2.94 cos 1.2 α 0sin α 0 (m 3/s) The equation is suitable for calculation of longshore sediment transport rate in lower wind speed and deeper sea bay and lake ( gd/u 2≥0.9).Compared with other sediment transport rate calculation models, the method was set up with higher reliability and accuracy and without wave measurement and surf wave element calculation.
出处
《台湾海峡》
CAS
CSCD
2001年第3期301-307,共7页
Journal of Oceanography In Taiwan Strait
基金
福建省自然科学基金资助项目 (D9910 0 2 1)
关键词
沙质海岸
沿岸输沙
数学模式
风浪
港湾
sandy beach
longshore sediment transprt rate
mathematical model
