三维数值波浪水池模拟海浪对导管架柱体的影响

Applying Three-Dimensional Numerical Wave Tank to Simulating the Effectof Wave and the Jacket Cylinder

对海洋钻井关键设备与安全检测技术进行了研究。在N-S方程以及标准k-ε模型的基础上,采用流体体积法(VOF)追踪自由表面的变化情况。应用Workbench软件建立三维数值波浪水池结合Fluent软件以及自定义函数(UDF)二次开发软件实现水池的造波功能,同时模拟了波浪与导管架之间的单向流固耦合。将简化导管架模型放入水池中,分析不同固定方式的变化情况,从而评定平台的安全性,为海浪与导管架平台相互作用问题的研究奠定了理论分析基础。

The key equipments of ocean drilling and safety testing technology are studied in this paper. On the basis of N-S equation and standard k-ε model, VOF is adopted to track the change of free surface. The software of Workbench is employed to establish a 3-d numerical wave tank. Meanwhile, the software of Fluent and user-defined function （UDF）, a secondary development software, are combined to realize the wave generation function of pool. In this way, the uniflow fluid-solid coupling between wave and jacket has been simulated. The simplified jacket model is put into the tank in order to analyze the changes of different fixed forms. Thus, the result can assess the safety of the platform and lay a theoretical analysis foundation for the re- search concerning the interaction between waves and jacket platform.