论文部分内容阅读
海洋冰区双结构物的设置,不仅影响该区域的流场,而且影响局地的海冰运动。应用涡极子理论,分析了海上双结构物设置时的流场变异,讨论了海冰对沉箱的破坏作用,研究了双沉箱设置下的海冰爬升和堆积机制。研究发现:(1)当海流流向与双沉箱的中心连线相近时,双沉箱对峙区的流速明显减小;(2)双沉箱外侧区域的海冰爬升和堆积与单沉箱时基本相同,其爬升和堆积与海冰的速度和厚度、天文潮高等有关;(3)双沉箱设置时,对海冰爬升和堆积会起到有效的屏蔽作用,对峙区内的双沉箱顶上不再有海冰堆积。
The installation of marine ice zone double structure not only affects the flow field in this area, but also affects the local sea ice movement. By using the vortex pole theory, the variation of flow field during the installation of offshore double structures was analyzed. The destructive effect of sea ice on caissons was discussed. The sea ice climbing and accumulation mechanism under the double caissons setting was also studied. The results show that: (1) when the flow direction is close to the center of double caissons, the flow rate in the confined area of double caissons decreases obviously; (2) The sea ice climb and accumulation in the outer area of double caissons is almost the same as that of single caissons. Climbing and accumulation are related to the speed and thickness of sea ice and astronomy tide. (3) When installing double caissons, sea ice climbing and accumulation will play an effective shielding effect. There is no sea on top of the double caissons in the confrontation area Ice accumulation.