J4  2011, Vol. 45 Issue (7): 1319-1328    DOI: 10.3785/j.issn.1008-973X.2011.07.030
 水利工程

Numerical simulation of transport and dispersion of suspended
matter due to dredged sediment disposal into large marine dumping area
LI Jia, YAO Yan-ming, SUN Zhi-lin, HUANG Sai-hua, YANG Xiao-dong
Institute of Harbor Coast and Nearshore Engineering, Zhejiang University, Hangzhou 310058, China
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Abstract:

Based on a well-verified two-dimensional mathematical model for tidal current, a numerical model combined with a stochastic model using the uniform distribution function was developed to study the transport and dispersion of suspended matter from a large marine dumping area for the project of dredging waterway into Wenzhou Harbor. The temporal and spatial distributions of the concentration of suspended matter disposed by a single workboat were simulated near the dumping area. The maximum increments of the suspended matter concentration were obtained. The stochastic point-source model showed more reasonable predictions compared with the results obtained from the fixed point-source model. The necessity of using the stochastic point-source model was discussed based on the scale of the marine dumping area. When the dumping area is more than 1 km2, the stochastic point-source approach should be used to simulate the transport and dispersion of suspended matter in the sea area beyond the Oujiang Estuary．

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#### 引用本文:

LI Jia, YAO Yan-ming, SUN Zhi-lin, HUANG Sai-hua, YANG Xiao-dong. Numerical simulation of transport and dispersion of suspended
matter due to dredged sediment disposal into large marine dumping area. J4, 2011, 45(7): 1319-1328.

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