Depth-resolved Modelling of Suspended Sediment in the Surf and Swash Zones

被引：0
|
作者：
Kranenborg, Joost W. M. [1 ]
Campmans, Geert H. P. [1 ]
van der Werf, Jebbe J. [1 ,2 ]
McCall, Robert T. [2 ]
Jacobsen, Niels Gjol [3 ]
Reniers, Ad J. H. M. [4 ]
Hulscher, Suzanne J. M. H. [1 ]
机构：
[1] Univ Twente, Enschede, Netherlands
[2] Deltares, Delft, Netherlands
[3] Vattenfall Vindkraft, Copenhagen, Denmark
[4] Delft Univ Technol, Delft, Netherlands
来源：
PROCEEDINGS OF THE 39TH IAHR WORLD CONGRESS | 2022年
关键词：
Swash-zone; Numerical model; Sediment transport; Morphodynamics; Waves; SCOUR; FLOW;
D O I：
10.3850/IAHR-39WC2521716X20221011
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
We present a depth-resolving model that is capable of resolving the vertical flow and suspended sediment structures in the surf and in the swash zones. The model uses the RANS equations to simulate hydrodynamics, and includes sediment transport using an advection diffusion approach. The model is first validated hydrodynamically using measured surface elevations. The results from the model show a strong vertical dependence in the suspended sediment flux, and that at certain cross-shore locations the wave-averaged sediment transport moves onshore where the average flow velocity is offshore-directed. These physical processes are important to consider when designing more practical, long-term depth-averaged models for simulating coastal morphodynamics.
引用
收藏
页码：4302 / 4307
页数：6
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