风对悬浮泥沙扩散特性影响数模研究

摘要

为探讨风对海岸工程产生悬浮泥沙的扩散特性影响,通过苍南海域海上倾倒试验实测资料验证了河口海岸地区平面二维潮流泥沙数学模型的计算参数.然后在模型中考虑风的作用,比较不同风向和风速作用下的悬浮泥沙扩散特性.研究结果表明:风会对悬浮泥沙的运动轨迹、扩散速度和扩散范围产生较大影响,且风向和风速是十分重要的影响因素.%A planar 2D tide-suspend sediment numerical model was established after a dumping test in the sea area around Cangnan and the discussions about the influence of wind on the dispersion of suspended sediment were made. Results show that wind has a great influence on track and diffusion of suspended sediment caused by dredged materials.Then,wind direction and wind speed are regarded as the main factors.