首页 > 过刊浏览>2025年第45卷第1期 >47-54. DOI:10.3880/j.issn.1006-7647.2025.01.007
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波流和植物作用下辽河口潮滩湿地水沙运动过程数值模拟
作者:
作者单位:

(1.大连海洋大学海洋科技与环境学院,辽宁 大连116023;2.辽宁省近海生态环境与灾害防护工程技术创新中心,辽宁 大连116023;3.中科星图维天信(北京)科技有限公司,北京100094 )

作者简介:

姜博(1995—),男,硕士研究生,主要从事河口水沙数值模拟研究。E-mail:jiangxiaobo241@163.com

中图分类号:

TV143

基金项目:

国家自然科学基金项目(U21A20155,52471270)；辽宁省应用基础研究计划项目(2023030048-JH2/1013)；辽宁省属本科高校基本科研业务费专项资金项目(LJ232410158063)


Numerical simulation of water and sediment movement processes in the Liaohe Estuary tidal flat wetland under influence of wave flow and vegetation
Author:
Affiliation:

(1.College of Marine Science and Technology and Environmental Science, Dalian Ocean University, Dalian 116023, China;2.Liaoning Provincial Engineering Technology Innovation Center for Nearshore Ecological Environment and Disaster Prevention, Dalian 116023, China;3.Zhongke Xingtu Weitianxin (Beijing) Technology Co., Ltd., Beijing 100094, China)

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    摘要:

    运用Delft3D软件建立了盐沼植被作用下波流耦合数值模型,定量分析了辽河口潮滩湿地海域的水沙动力特性和泥沙落淤过程。结果表明:模型模拟的波浪、潮流及悬浮泥沙结果与实测数据相符,各测点模拟的悬浮泥沙浓度自表层至底层逐渐上升；不同盐沼植被如芦苇与盐地碱蓬,对潮滩流速的阻碍影响存在显著差异,在大潮期,芦苇能更有效地衰减水流速度；相比盐地碱蓬植被,芦苇在截留悬浮泥沙及促使泥沙落淤方面的作用更加显著。

    Abstract:

    A wave-flow coupled numerical model under the influence of salt marsh vegetation was established using Delft3D software to quantitatively analyze the water and sediment dynamics and sediment deposition processes in the Liaohe Estuary tidal flat wetland. The research results show that the simulated wave, tidal current, and suspended sediment results are consistent with the measured data. The suspended sediment concentration at each measurement point gradually increases from the surface layer to the bottom layer. Different salt marsh vegetation types, such as Phragmites australis and Suaeda salsa , have significant differences in their effects on the tidal flat flow velocity. During the spring tide period, Phragmites australis can more effectively attenuate flow velocity. Compared to Suaeda salsa , Phragmites australis has a more significant effect on the interception of suspended sediment and sediment deposition.

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姜博,张仟龙,宋志坤,等.波流和植物作用下辽河口潮滩湿地水沙运动过程数值模拟[J].水利水电科技进展,2025,45(1):47-54.(JIANG Bo, ZHANG Qianlong, SONG Zhikun, et al. Numerical simulation of water and sediment movement processes in the Liaohe Estuary tidal flat wetland under influence of wave flow and vegetation[J]. Advances in Science and Technology of Water Resources,2025,45(1):47-54.(in Chinese))

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  • 收稿日期:2023-10-23
  • 在线发布日期: 2025-01-24

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