CAJ | 학술논문

基于物理量守恒的有限体积法，建立了三维粘性泥沙运动及回淤数学模型。平面采用无结构三角形网格划分计算区域、拟合复杂海岸边界，垂向采用坐标变换技术，适应不平坦海底地形。以天津港港内泥沙回淤为例，模拟三维粘性泥沙的输运过程，得出了港内垂向分层潮流流场、垂向含沙量变化、淤积历程及淤积分布。结合实测地形资料对模型进行验证，为研究三维泥沙运动特性提供了一种新的方法。
기우물리량수항적유한체적법，건립료삼유점성니사운동급회어수학모형。평면채용무결구삼각형망격화분계산구역、의합복잡해안변계，수향채용좌표변환기술，괄응불평탄해저지형。이천진항항내니사회어위례，모의삼유점성니사적수운과정，득출료항내수향분층조류류장、수향함사량변화、어적역정급어적분포。결합실측지형자료대모형진행험증，위연구삼유니사운동특성제공료일충신적방법。
Based on the law of physical quantity conservation,finite volume method is used to establish a 3D numerical model for simulating cohesive sediment movement and deposition. Structureless triangular grid is adopted to divide computation area and fitting complex coast border, coordinate transformation technology is adopted vertically to adapt to uneven seabed topography. The sediment deposition of Tianjin port is based on to build 3D cohesive sediment movement model,which leads to tidal flow field stratified vertically in harbor,variation of vertical sediment concentration,sediment deposition process and distribution.The measured geological data is used to verify the above model,which will provide a new method to study the characteristics of sediment movement.