近岸海域近底泥沙通量计算方法分析及应用  

Analysis and application of computational methods of coastal near- bed sediment flux

作　　者：柯杰[1,2] 陶爱峰[1,2] 李瑞杰[1,3] 李春辉[1,3] 董啸天[1,2] 

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,江苏南京210098 [2]河海大学港口海岸与近海工程学院,江苏南京210098 [3]河海大学环境海洋实验室,江苏南京210098

出　　处：《人民长江》2015年第1期78-82,共5页Yangtze River

基　　金：国家自然科学基金项目资助(41276017)

摘　　要：近底泥沙通量问题是近岸泥沙和海床冲淤演变预测的关键,常用的计算方法包括挟沙力方法和切应力方法。列举了近底泥沙通量的常用计算公式,并通过数学推导初步证明了两种方法在公式形式上的统一性。结合舟山群岛粉砂质海域和江苏沿海淤泥质海域的数学模型,分别用这两种方法计算近底泥沙通量,为论证其在实际应用中一致性提供了数据支撑。The near-bed sediment flux is the key to near-shore sediment movement and seabed evolution prediction. The commonly used calculation methods include sediment carrying capacity method and shear stress method. The paper listed several computational formulas for near-bed sediment flux calculation, and preliminary verified the unity of the two methods in the for-mula form through mathematical deduction. Combined with the mathematical model of Zhoushan Islands silty sea area and Jiangsu costal muddy sea area, the near-bed sediment flux was calculated by using the two methods and the unity of the two methods in practical application was demonstrated.

关 键 词：近底泥沙通量 挟沙力 切应力 数值验证 

分 类 号：TV14[水利工程—水力学及河流动力学]