基于Flow-3D的抗拖网海床基冲刷数值模拟
发布时间：2019-06-12 15:25
【摘要】：基于Flow-3D软件,建立抗拖网海床基沙土基床冲刷的三维数学模型,控制水流流速和泥沙粒径,对不同条件下抗拖网海床基周围沙土基床的冲刷进行数值模拟,并分析了抗拖网海床基最大冲刷深度随这两种因素改变的趋势。结果表明,抗拖网海床基沙土基床冲刷坑深度随海流流速增大而增加,在设定其他条件不改变的情况下,冲刷坑的加深速度随着流速增大会逐渐减缓,最终达到冲淤平衡。同时,由于海底环境复杂多变,导致模型与实际情况有一定的差异,还需在后续的研究中进一步进行优化。
[Abstract]:Based on Flow-3D software, a three-dimensional mathematical model of anti-trawl bed scour is established, the flow velocity and sediment particle size are controlled, the scour of sand bed around trawl bed foundation under different conditions is simulated, and the trend of maximum scour depth of anti-trawl bed foundation with these two factors is analyzed. The results show that the depth of scour pit increases with the increase of current velocity, and the deepening speed of scour pit slows down with the increase of velocity, and finally reaches the balance of scouring and silting. At the same time, due to the complexity and variability of the seafloor environment, there are some differences between the model and the actual situation, and further optimization needs to be carried out in the follow-up research.
【作者单位】： 国家深海基地管理中心;青岛科技大学机电工程学院;
【基金】：“泰山学者工程”专项经费项目资助(tspd 20161007)
【分类号】：P715
，
本文编号：2498105
[Abstract]:Based on Flow-3D software, a three-dimensional mathematical model of anti-trawl bed scour is established, the flow velocity and sediment particle size are controlled, the scour of sand bed around trawl bed foundation under different conditions is simulated, and the trend of maximum scour depth of anti-trawl bed foundation with these two factors is analyzed. The results show that the depth of scour pit increases with the increase of current velocity, and the deepening speed of scour pit slows down with the increase of velocity, and finally reaches the balance of scouring and silting. At the same time, due to the complexity and variability of the seafloor environment, there are some differences between the model and the actual situation, and further optimization needs to be carried out in the follow-up research.
【作者单位】： 国家深海基地管理中心;青岛科技大学机电工程学院;
【基金】：“泰山学者工程”专项经费项目资助(tspd 20161007)
【分类号】：P715
，
本文编号：2498105
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