船舶工程

[目的]为解决实验室环境下小型水池中的可控波浪生成问题，[方法]通过构建基于溃坝水位差模型的水位波动与孤立波生成装置，建立具备跨水域特性的试验模型水池。通过控制溃坝装置中上游初始水位存量，针对指定跨水域位置的水位波动与孤立波高的变化趋势及规律展开研究，并通过雷诺平均纳维-斯托克斯（RANS）方法构建数字水池对强非线性极端试验工况进行计算校核，双向收敛验证试验方法的可行性与准确性。[结果]结果表明：通过溃坝模型制造水位波动与孤立波的方法有效，可在试验水池中固定位置生成幅度可控的波高为2 mm～39 mm的孤立波。[结论]研究成果可为实验室环境下小型水池中的可控波浪生成提供一定参考。

[Purpose] To solve the problem of controllable wave generation in small water tanks in laboratory environments, [Method] an experimental model water tank with cross water characteristics is established by constructing a water level fluctuation and solitary wave generation device based on a dam break water level difference model. By controlling the initial water level inventory in the upstream of the dam breaking device, research is conducted on the trends and laws of water level fluctuations and isolated wave heights at designated cross water locations. A digital water tank is constructed using the Reynolds Average Navier-Stokes(RANS) method to calculate and verify the strong nonlinear extreme test conditions, and the feasibility and accuracy of the bidirectional convergence verification test method are verified. [Result] The results indicate that the method of creating water level fluctuations and solitary waves through dam break models is effective, and can generate isolated waves with controllable wave heights ranging from 2 mm to 39 mm at fixed positions in the test pool. [Conclusion] The research results can provide some references for controllable wave generation in small water tanks in laboratory environments.