不规则波对透空有梁面板底部缓变作用的数值模拟
|
摘要
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。
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 slowlyvarying force formulas based on the simulation data and existing research results,which can provide reference for the similar projects.
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 slowlyvarying force formulas based on the simulation data and existing research results,which can provide reference for the similar projects.
引文
[1]任冰.随机波浪对不同接岸型式码头上部结构的冲击作用研究[D].大连:大连理工大学,2003.
[2] WANG H. Water wave pressure on horizontal plate[J].Journal of the hydraulics division,1970,96(10):1997-2017.
[3] SHIH R W K,ANASTASIOU K. A laboratory study of the wave induced vertical loading on platform decks[J]. Water maritime and energy,1992,96:19-33.
[4] TIRINDELLI M, CUOMO G, ALLSOP N W H, et al.Physical model studies of wave-induced loading on exposed jetties:towards new prediction formulae[C]//ASCE.Proceedings of ASCE.New York:ASCE,2004:382-393.
[5]黄磊.不规则波对高桩码头面板缓变压力的试验研究[D].南京:河海大学,2011.
[6]金凤,万超.规则波对平板缓变压力作用数值模拟研究[J].水运工程,2016(2):15-19.
[7]高学平,曾广冬,张亚.不规则波浪数值水槽的造波和阻尼消波[J].海洋学报(中文版),2002,24(2):127-132.
[8]董志,詹杰民.基于VOF方法的数值波浪水槽以及造波、消波方法研究[J].水动力学研究与进展(A辑),2009,24(1):15-21.
[2] WANG H. Water wave pressure on horizontal plate[J].Journal of the hydraulics division,1970,96(10):1997-2017.
[3] SHIH R W K,ANASTASIOU K. A laboratory study of the wave induced vertical loading on platform decks[J]. Water maritime and energy,1992,96:19-33.
[4] TIRINDELLI M, CUOMO G, ALLSOP N W H, et al.Physical model studies of wave-induced loading on exposed jetties:towards new prediction formulae[C]//ASCE.Proceedings of ASCE.New York:ASCE,2004:382-393.
[5]黄磊.不规则波对高桩码头面板缓变压力的试验研究[D].南京:河海大学,2011.
[6]金凤,万超.规则波对平板缓变压力作用数值模拟研究[J].水运工程,2016(2):15-19.
[7]高学平,曾广冬,张亚.不规则波浪数值水槽的造波和阻尼消波[J].海洋学报(中文版),2002,24(2):127-132.
[8]董志,詹杰民.基于VOF方法的数值波浪水槽以及造波、消波方法研究[J].水动力学研究与进展(A辑),2009,24(1):15-21.