聚焦波与水囊潜堤相互作用的试验与数值模拟研究  

Experimental and numerical simulation study on the interaction of focused waves and fluid-filled membrane submerged breakwaters

作　　者：刘畅[1] 刘维杰[1,2] 金袭 赵西增 LIU Chang;LIU Weijie;JIN Xi;ZHAO Xizeng(Ocean College,Zhejiang University,Zhoushan 316021,China;National Key Laboratory of Water Disaster Prevention,Nanjing Hydraulic Research Institute,Nanjing 210098,China;Agriculture,Rural Affairs and Water Resources Bureau of Wenling,Taizhou 317599,China)

机构地区：[1]浙江大学海洋学院,浙江舟山316021 [2]南京水利科学研究院水灾害防御全国重点实验室,江苏南京210098 [3]温岭市农业农村和水利局,浙江台州317599

出　　处：《海洋工程》2025年第2期12-24,共13页The Ocean Engineering

基　　金：国家自然科学基金资助项目(51979245);水文水资源与水利工程科学国家重点实验室“一带一路”水与可持续发展科技基金资助项目(2019nkms03);浙江省舟山市重大产业科技攻关项目(2023C03004);中央引导地方科技发展资金资助项目(2023ZY1021)。

摘　　要：水囊潜堤是一种兼具结构安全及经济环境效益的代表性柔性防波堤,具有良好的应用前景。开展极端波浪与水囊潜堤相互作用的物理模型试验,分析水囊潜堤在聚焦波作用下的消浪特性,并构建波浪与水囊潜堤相互作用的流固耦合数值模型。基于验证后的数值模型探究聚焦波作用下水囊充盈度和潜堤位置对潜堤消浪效果的影响规律,分析上述因素对水囊潜堤消浪性能的影响机制。结果表明,构建的流固耦合模型可准确地模拟聚焦波与水囊潜堤的相互作用过程;相比刚性潜堤,水囊潜堤与波浪相互作用更为剧烈,具有更好的消浪性能;水囊充盈度的改变可通过同时改变潜堤的反射和耗散作用影响其消浪效果,其中耗散作用主要通过改变结构运动产生的涡量而产生,聚焦波作用下水囊潜堤的最佳充盈度为96%;潜堤布放位置在聚焦振幅较大时对消浪效果影响较大,潜堤位置离聚焦位置越近,结构运动产生的涡量及波面涡量耗散越大,消浪效果越好。相关结果可以为柔性水囊潜堤在实际极端海况下的应用提供一定借鉴,对于提高海洋防灾减灾能力、保护海洋环境等具有重要意义。Fluid-filled membrane submerged breakwaters are a type of flexible breakwater that offer both structural safety and economic-environmental benefits,presenting promising application prospects.This study conducts physical model experiments on the interaction between extreme waves and fluid-filled membrane submerged breakwaters,analyzing the wave dissipation characteristics under focused wave action.A fluid-structure coupled model is established,and the impact of fluid-filled membrane breakwater filling degree and breakwater positioning on wave dissipation effectiveness is explored using the validated numerical model.The influence mechanism of these factors is analyzed.The findings show that the constructed fluid-structure coupled numerical model can accurately simulate the interaction process between focused waves and fluid-filled membrane submerged breakwaters.Compared to rigid breakwaters,the interaction between fluid-filled membrane submerged breakwaters and waves is more intense,with better wave dissipation performance.The fluid-filled membrane breakwaters filling degree can affect wave dissipation by simultaneously altering the breakwaters reflection and dissipation effects,where dissipation mainly changes due to vortices generated by structural movement.Under focused wave action,the optimal filling degree for the fluid-filled membrane breakwater submerged breakwater is 96%.The positioning of the breakwater has a significant impact under large focused amplitudes.The closer the breakwater is to the focus point,the greater the dissipation of vortices generated by the structure and wave surface vortices,thus improving wave dissipation.The results of this study can provide valuable insights for the application of flexible fluid-filled membrane submerged breakwaters in extreme sea conditions and are of significant importance for enhancing marine disaster prevention and environmental protection.

关 键 词：水囊潜堤 CIP方法 聚焦波 流固耦合 消浪性能 防波堤 

分 类 号：TV139.2[水利工程—水力学及河流动力学]