海潮对河口河道水位等影响范围和影响强度关系到河口地区经济社会的可持续发展,这些问题又直接与河口治理规划,河口地区防洪密切相关,海潮对河口河道影响具有重要意义。以二维水动力有限元数学模型为手段,选取黄河河口莱州湾清水沟入海流路为研究对象,在入海河道上足够多的典型位置处的水位和流速为对象,通过对沿程水位和流速的变化分析研究得到3 000 m^3/s流量下海潮对河口的影响范围在距离口门约5~10 km的范围内,计算分析结果与实测资料分析结果基本一致。
Based on the verified two dimensional sea-tides hydraulic model numerical model,effect of sea-tides on the water flow and sediment movement in the Yellow River estuary is analyzed.The calculation results show that the influence of the discharge of 3,000 m^3/s upon the estuary is within 5,000~10,000 meter.This calculation result is consistent with the field analysis.