基于正交设计的浮体结构流动特性分析
|
摘要
采用正交设计以及CFD仿真,对在流动水域中不同浮体长度和水力因素下的水流流动特性的影响进行了分析.结果表明,浮体长度以及水力因素对浮体所受动水压力、水流特征流速以及回流区长度都存在显著影响:特征流速以及回流区长度受单宽流量的影响更敏感,而浮体结构参数对浮体表面所受动水压力影响显著.同时给出浮体长度以及水力因素与流动特性的对应关系,为了解浮体结构在动水运行过程中的流动特性变化规律以及浮体稳定性设计提供参考.
In light of the security and stability of floating structures,the orthogonal design and CFD simulations are used to explore the effects of different structural parameters and hydraulic factors on the flow characteristics of the floating structure.The results show that floating structure length and hydraulic factors have a significant effect on the hydrodynamic pressure,water flow velocity and length of recirculation region,the sensitivity of water flow velocity and length of recirculation region are relatively large on the discharge per unit width;the sensitivity of the hydrodynamic pressure is relatively large on floating structure scales;the corresponding relationship between the flow characteristic and floating structure scales and hydraulic factors are got at the same time.The research methods and results of this paper can provide a reference for designing the stability of the floating structure and knowing the water characteristic during its operation.
In light of the security and stability of floating structures,the orthogonal design and CFD simulations are used to explore the effects of different structural parameters and hydraulic factors on the flow characteristics of the floating structure.The results show that floating structure length and hydraulic factors have a significant effect on the hydrodynamic pressure,water flow velocity and length of recirculation region,the sensitivity of water flow velocity and length of recirculation region are relatively large on the discharge per unit width;the sensitivity of the hydrodynamic pressure is relatively large on floating structure scales;the corresponding relationship between the flow characteristic and floating structure scales and hydraulic factors are got at the same time.The research methods and results of this paper can provide a reference for designing the stability of the floating structure and knowing the water characteristic during its operation.
引文
[1]卢树春.浮体闸技术的发展与推广应用[J].水利水电技术,1994,(1):19-21.Lu Shuchun.The development and popularization of the technology of floating sluice applications[J].Water Resources and Hydropower Engineering,1994,(1):19-21.
[2]傅宗甫,严忠民,吕家才.大型浮体闸水工模型试验方法[J].水利水电科技进展,2007,27(5):6-9.Fu Zongfu,Yan Zhongmin,LüJiacai.Method for hydraulic model test of large-scale floating sluice[J].Advances in Science and Technology of Water Resources,2007,27(5):6-9.
[3]Cui Zhen,Fu Zongfu,Dai Wenhong,et al.Submerged fixed floating structure under the action of surface current[J].Water,2018,10(2):102.
[4]傅宗甫,严忠民.新型浮体闸的稳定性分析[J].水利学报,2005,36(8):1014-1018.Fu Zongfu,Yan Zhongmin.Stability analysis on a new type of floating sluice[J].Journal of Hydraulic Engineering,2005,36(8):1014-1018.
[5]张李萍.浮体闸定位过程水力特性研究[D].南京:河海大学,2007.Zhang Liping.Study on hydrodynamic characteristics of locating process of float sluice[D].Nanjing:Hohai University,2007.
[6]肖潇,蒋昌波,程永舟.水流对浮体作用的SPH方法模拟[J].船舶力学,2011,(8):861-866.Xiao Xiao,Jiang Changbo,Cheng Yongzhou.Simulation of flow-induced floating-body motion with SPH method[J].Journal of Ship Mechanics,2011,(8):861-866.
[7]孙明,刘培林,孙丽萍,等.深海安装中多浮体作业的水动力分析[J].水动力学研究与进展A辑,2011,(3):351-358.Sun Ming,Liu Peiling,Sun Liping,et al.Hydrodynamic analyzing of multi-body operation in deepwater installation[J].Chinese Journal of Hydrodynamics,2011,(3):351-358.
[8]谢建华.关于浮体的平衡与稳定性[J].力学与实践,2010,(5):77-80.Xie Jianhua.The balance and stability of the floating body[J].Mechanics in Engineering,2010,(5):77-80.
[9]童晓旺,任慧龙,李辉,等.浮体在时域中的瞬时运动和波浪力数值模拟[J].哈尔滨工程大学学报,2012,(12):1453-1458.Tong Xiaowang,Ren Huilong,Li Hui,et al.Numerical simulation of the transient motion and wave exciting force for a floating body in the time domain[J].Journal of Harbin Engineering University,2012,(12):1453-1458.
[10]Sun R,Chwang A T.Interaction of a floating elliptical cylinder with a vibrating circular cylinder[J].Journal of Hydrodynamics,Ser.B,2006,18(4):481-491.
[11]Zhang J,Miao G,Liu J,et al.Analytical models of floating bridges subjected by moving loads for different water depths[J].Journal of Hydrodynamics,Ser.B,2008,20(5):537-546.
[12]Zhu H,Zhu R,Miao G.A time domain investigation on the hydrodynamic resonance phenomena of 3-D multiple floating structures[J].Journal of Hydrodynamics,Ser.B,2008,20(5):611-616.
[13]李利荣,王福军,文恒,等.水力自动滚筒闸门水动力特性数值模拟[J].水利学报,2010,(1):30-36.Li Lirong,Wang Fujun,Wen Heng,et al.Numerical analysis of hydrodynamics for hydro-automatic roller gate[J].Journal of Hydraulic Engineering,2010,(1):30-36.
[14]傅宗甫,殷晓锦,顾晓峰.浮体闸动水沉浮过程水力特性[J].水利水电科技进展,2014,(5):24-27.Fu Zongfu,Yin Xiaojin,Gu Xiaofeng.Hydraulic characteristics of floating sluices subsiding and buoying in flowing water[J].Advances in Science and Technology of Water Resources,2014,(5):24-27.
[15]郑艳,魏文礼,刘玉玲.丁坝长度对回流长度影响的数值模拟研究[J].沈阳农业大学学报,2014,(2):195-199.Zhen Yan,Wei Wenli,Liu Yuling.Influence of spurdike length on the recirculation scale by numerical simulation[J].Journal of Shenyang Agricultural University,2014,(2):195-199.
[16]崔贞,王珊,傅宗甫,等.不同网格尺度对浮体水动力学性能的影响[J].水电能源科学,2016,34(12):101-105.Cui Zhen,Wang Shan,Fu Zongfu,et al.Infulence of mesh scale on hydrodynamic characteristics of floating body[J].Water Resources and Power,2016,34(12):101-105.
[17]陈稚聪,黑鹏飞,丁翔.丁坝回流分区机理及回流尺度流量试验研究[J].水科学进展,2008,(5):613-617.Chen Zhicong,Hei Pengfei,Ding Xiang.Division and flow scale investigation of circulation zone around spur dike[J].Advances in Water Science,2008,(5):613-617.
[2]傅宗甫,严忠民,吕家才.大型浮体闸水工模型试验方法[J].水利水电科技进展,2007,27(5):6-9.Fu Zongfu,Yan Zhongmin,LüJiacai.Method for hydraulic model test of large-scale floating sluice[J].Advances in Science and Technology of Water Resources,2007,27(5):6-9.
[3]Cui Zhen,Fu Zongfu,Dai Wenhong,et al.Submerged fixed floating structure under the action of surface current[J].Water,2018,10(2):102.
[4]傅宗甫,严忠民.新型浮体闸的稳定性分析[J].水利学报,2005,36(8):1014-1018.Fu Zongfu,Yan Zhongmin.Stability analysis on a new type of floating sluice[J].Journal of Hydraulic Engineering,2005,36(8):1014-1018.
[5]张李萍.浮体闸定位过程水力特性研究[D].南京:河海大学,2007.Zhang Liping.Study on hydrodynamic characteristics of locating process of float sluice[D].Nanjing:Hohai University,2007.
[6]肖潇,蒋昌波,程永舟.水流对浮体作用的SPH方法模拟[J].船舶力学,2011,(8):861-866.Xiao Xiao,Jiang Changbo,Cheng Yongzhou.Simulation of flow-induced floating-body motion with SPH method[J].Journal of Ship Mechanics,2011,(8):861-866.
[7]孙明,刘培林,孙丽萍,等.深海安装中多浮体作业的水动力分析[J].水动力学研究与进展A辑,2011,(3):351-358.Sun Ming,Liu Peiling,Sun Liping,et al.Hydrodynamic analyzing of multi-body operation in deepwater installation[J].Chinese Journal of Hydrodynamics,2011,(3):351-358.
[8]谢建华.关于浮体的平衡与稳定性[J].力学与实践,2010,(5):77-80.Xie Jianhua.The balance and stability of the floating body[J].Mechanics in Engineering,2010,(5):77-80.
[9]童晓旺,任慧龙,李辉,等.浮体在时域中的瞬时运动和波浪力数值模拟[J].哈尔滨工程大学学报,2012,(12):1453-1458.Tong Xiaowang,Ren Huilong,Li Hui,et al.Numerical simulation of the transient motion and wave exciting force for a floating body in the time domain[J].Journal of Harbin Engineering University,2012,(12):1453-1458.
[10]Sun R,Chwang A T.Interaction of a floating elliptical cylinder with a vibrating circular cylinder[J].Journal of Hydrodynamics,Ser.B,2006,18(4):481-491.
[11]Zhang J,Miao G,Liu J,et al.Analytical models of floating bridges subjected by moving loads for different water depths[J].Journal of Hydrodynamics,Ser.B,2008,20(5):537-546.
[12]Zhu H,Zhu R,Miao G.A time domain investigation on the hydrodynamic resonance phenomena of 3-D multiple floating structures[J].Journal of Hydrodynamics,Ser.B,2008,20(5):611-616.
[13]李利荣,王福军,文恒,等.水力自动滚筒闸门水动力特性数值模拟[J].水利学报,2010,(1):30-36.Li Lirong,Wang Fujun,Wen Heng,et al.Numerical analysis of hydrodynamics for hydro-automatic roller gate[J].Journal of Hydraulic Engineering,2010,(1):30-36.
[14]傅宗甫,殷晓锦,顾晓峰.浮体闸动水沉浮过程水力特性[J].水利水电科技进展,2014,(5):24-27.Fu Zongfu,Yin Xiaojin,Gu Xiaofeng.Hydraulic characteristics of floating sluices subsiding and buoying in flowing water[J].Advances in Science and Technology of Water Resources,2014,(5):24-27.
[15]郑艳,魏文礼,刘玉玲.丁坝长度对回流长度影响的数值模拟研究[J].沈阳农业大学学报,2014,(2):195-199.Zhen Yan,Wei Wenli,Liu Yuling.Influence of spurdike length on the recirculation scale by numerical simulation[J].Journal of Shenyang Agricultural University,2014,(2):195-199.
[16]崔贞,王珊,傅宗甫,等.不同网格尺度对浮体水动力学性能的影响[J].水电能源科学,2016,34(12):101-105.Cui Zhen,Wang Shan,Fu Zongfu,et al.Infulence of mesh scale on hydrodynamic characteristics of floating body[J].Water Resources and Power,2016,34(12):101-105.
[17]陈稚聪,黑鹏飞,丁翔.丁坝回流分区机理及回流尺度流量试验研究[J].水科学进展,2008,(5):613-617.Chen Zhicong,Hei Pengfei,Ding Xiang.Division and flow scale investigation of circulation zone around spur dike[J].Advances in Water Science,2008,(5):613-617.