不规则波对透空有梁面板底部缓变作用的数值模拟

采用计算机数值模拟方法,在FLUENT软件计算平台上建立二维不规则波浪模型,对透空有梁面板结构底面受到的波浪缓变压力作用进行研究。通过模拟典型工况,采用低通滤波器方法提取上托力信号的缓变部分,将数值模拟结果和试验结果进行比较,验证模型的有效性。讨论波陡、超高和板宽各因素对缓变压力的影响,进而在模拟数据和已有成果基础上提出板底最大缓变压力的经验公式,为类似工程提供参考。

Numerical simulation of irregular wave slowly-varying force on permeable beam-plate structure

Using numerical simulation method,we establish two-dimensional irregular wave numerical model based on the software FLUENT,and research the mechanism of wave slowly-varying force on the permeable beam-plate structure.Through simulating typical cases of wave slamming on beam-plate structures,we use low-pass filter method to obtain the slowly-varying sections from the up-lift force signals,and verify the models by comparing the experimental data with the simulation result.We analyze the influences of the three parameters on the slowly-varying force,such as wave steepness,relative clearance and relative structure width, and propose the empirical slowly-varying force formulas based on the simulation data and existing research results,which can provide reference for the similar projects.