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基于FVCOM建立大辽河口水动力数值模型,用数值模拟方法计算分析了潮-径相互作用下大辽河口潮能通量分布与沿程变化特征。结果表明:沿程动能空间分布与水深分布一致,势能空间分布与潮差变化一致且在沿程能量组成中占主要部分;枯水期潮能通量影响范围最远,且潮能通量总体最大,高能通量区集中在深槽和河道断面狭窄处,低能通量区在河口附近潮滩与上游河段;入海口门附近潮能通量方向在丰水期指向外海,在枯水期方向相反。研究结果可为河口沉积动力过程方面的研究提供参考。
Based on FVCOM, the hydrodynamic model of Da Liaohe Estuary was established, and the distribution of the tidal energy flux and the variation along the course of the Liaohe River estuary under the interaction of the tide and the path were calculated by numerical simulation. The results show that the spatial distribution of kinetic energy along the journey is consistent with the water depth distribution, the spatial distribution of potential energy is consistent with the variation of the tidal range and the main part of the energy composition along the journey; the tidal flux of the dry season has the farthest impact range and the tidal energy flux is the largest, The high-energy flux areas are concentrated in the narrow trenches and the narrow sections of the channel. The low-flux areas are near the estuarine tidal flats and the upper reaches of the estuary. The direction of the tidal flux near the estuary of the estuary points to the open sea in the wet season and opposite in the dry season. The results can provide reference for the research on the dynamic process of estuary deposition.