浮体结构对下游水流结构影响
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摘要
采用物理模型试验研究流动水域中浮体结构对下游水流流动结构的影响,对不同长高比浮体结构及其在不同水位差条件下浮体结构下游水流结构特征断面的流速分布、流速不均匀系数以及回流区长度进行分析。结果表明:浮体结构体型的变化对流速分布及流速不均匀系数的影响并不明显,水位差对两者均有较大的影响,其影响随着水位差的增大而增大;回流区长度受浮体结构体型以及水位差影响均较敏感,在实际运用中,应该主要关注水位差变化引起的水流流动结构的变化。
The influence of floating structure on the downstream flowing structure in the flowing water was studied by using a physical model test. By comparing the flowing structures under different aspect ratios and water levels,the flowing velocity distribution,non-uniform coefficient and the length of recirculation zone of the characteristic cross section were analyzed. The results show that the influence of aspect ratios on the velocity distribution and the non-uniform coefficient is not obvious,while the water-level difference has a great influence and it shows an increasing trend with the increase of water level. At the same time,the length of recirculation zone is more sensitive to the aspect ratio and water level. In the practical engineering,attentions should be paid to the engineering problems caused by the change of water level. This study can provide references for the design of floating structure as well as the change rule of downstream flowing structure in current during the process of running.
The influence of floating structure on the downstream flowing structure in the flowing water was studied by using a physical model test. By comparing the flowing structures under different aspect ratios and water levels,the flowing velocity distribution,non-uniform coefficient and the length of recirculation zone of the characteristic cross section were analyzed. The results show that the influence of aspect ratios on the velocity distribution and the non-uniform coefficient is not obvious,while the water-level difference has a great influence and it shows an increasing trend with the increase of water level. At the same time,the length of recirculation zone is more sensitive to the aspect ratio and water level. In the practical engineering,attentions should be paid to the engineering problems caused by the change of water level. This study can provide references for the design of floating structure as well as the change rule of downstream flowing structure in current during the process of running.
引文
[1]WANG C M,TAY Z Y.Very large floating structures:applications,research and development[J].Procedia Engineering,2011,14:62-72.
[2]孙国荣,别大鹏,荣雪宁.大跨度对拉式浮体闸门流激振动特性研究:以南水北调中线一期引江济汉工程对拉式闸门为例[J].人民长江,2014,45(3):55-57.(SUN Guorong,BIE Dapeng,RONG Xuening.Research on flow-induced vibration of large-span floating gate of counter-pulling[J].Yangtze River,2014,45(3):55-57.(in Chinese))
[3]杨敏慧.深水浮体式检修闸门在刘家峡水电站泄水道检修中的应用[J].甘肃水利水电技术,2013(6):27-28.(YANG Minhui.The application of deep floating bulkhead gate in the sluiceway overhaul liujiaxia hydropower station[J].Gansu Water Resource and Hydropower Technology,2013(6):27-28.(in Chinese))
[4]LEE K,LEE P.Nonlinear hydrostatic analysis of flexible floating structures[J].Applied Ocean Research,2016,59:165-182.
[5]曾东.箱式浮体在波浪中的运动分析[D].武汉:华中科技大学,2007.
[6]CHEN L F.Numerical study of roll motion of a 2D floating structure in viscous flow[J].Journal of Hydrodynamics,2016,28(4):544-563.
[7]翟钢军,程勇,马哲.超大型浮式储油船的水弹性响应预报[J].振动与冲击,2014,33(1):141-148.(ZHAI Gangjun,CHENG Yong,MA Zhe.Hydroelastic response prediction of very large floating oil storage vessel[J].Journal of Vibration and Shock,2014,33(1):141-148.(in Chinese))
[8]ZHANG H C,XUD L,XIA S Y,et al.Nonlinear network modeling of multi-module floating structures with arbitrary flexible connections[J].Journal of Fluids and Structures,2015,59:270-284.
[9]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,2014,34(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,2014,34(5):24-27.(in Chinese))
[10]邢殿录.限制水域浮体水动力特性研究[J].大连理工大学学报,1993,33(3):351-355.(XING Dianlu.Research on hydrodynamic performance of float bodies in confined zone[J].Journal of Dalian University of Technology,1993,33(3):351-355.(in Chinese))
[11]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,LYU Jiacai.Method for hydraulic model test of large-scale floating sluice[J].Advances in Science and Technology of Water Resources,2007,27(5):6-9.(in Chinese))
[12]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.(in Chinese))
[13]黄树权,黄少峰,黄国富,等.浮体一字门动水启闭过程的数值模拟研究[C]//佚名.第二十三届全国水动力学研讨会暨第十届全国水动力学学术会议文集.上海:《水动力学研究与进展》杂志社,2011:669-675.
[14]董华洋.浮箱-水平板式浮防波堤水动力特性研究[D].大连:大连理工大学,2009.
[15]陆彦.大型浮箱门在动水中的稳定性分析及试验研究[D].南京:河海大学,2002.
[16]张李萍.浮体闸定位过程水力特性研究[D].南京:河海大学,2007.
[17]王法猛,傅宗甫,吕家才,等.闸站合建枢纽对河口通航影响的模型试验[J].水利水电科技进展,2012,32(5):29-31.(WANG Fameng,FU Zongfu,LYU Jiacai,et al.Model tests on influence of combined construction of sluices and pump stations on estuarine navigation[J].Advances in Science and Technology of Water Resources,2012,32(5):29-31.(in Chinese))
[2]孙国荣,别大鹏,荣雪宁.大跨度对拉式浮体闸门流激振动特性研究:以南水北调中线一期引江济汉工程对拉式闸门为例[J].人民长江,2014,45(3):55-57.(SUN Guorong,BIE Dapeng,RONG Xuening.Research on flow-induced vibration of large-span floating gate of counter-pulling[J].Yangtze River,2014,45(3):55-57.(in Chinese))
[3]杨敏慧.深水浮体式检修闸门在刘家峡水电站泄水道检修中的应用[J].甘肃水利水电技术,2013(6):27-28.(YANG Minhui.The application of deep floating bulkhead gate in the sluiceway overhaul liujiaxia hydropower station[J].Gansu Water Resource and Hydropower Technology,2013(6):27-28.(in Chinese))
[4]LEE K,LEE P.Nonlinear hydrostatic analysis of flexible floating structures[J].Applied Ocean Research,2016,59:165-182.
[5]曾东.箱式浮体在波浪中的运动分析[D].武汉:华中科技大学,2007.
[6]CHEN L F.Numerical study of roll motion of a 2D floating structure in viscous flow[J].Journal of Hydrodynamics,2016,28(4):544-563.
[7]翟钢军,程勇,马哲.超大型浮式储油船的水弹性响应预报[J].振动与冲击,2014,33(1):141-148.(ZHAI Gangjun,CHENG Yong,MA Zhe.Hydroelastic response prediction of very large floating oil storage vessel[J].Journal of Vibration and Shock,2014,33(1):141-148.(in Chinese))
[8]ZHANG H C,XUD L,XIA S Y,et al.Nonlinear network modeling of multi-module floating structures with arbitrary flexible connections[J].Journal of Fluids and Structures,2015,59:270-284.
[9]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,2014,34(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,2014,34(5):24-27.(in Chinese))
[10]邢殿录.限制水域浮体水动力特性研究[J].大连理工大学学报,1993,33(3):351-355.(XING Dianlu.Research on hydrodynamic performance of float bodies in confined zone[J].Journal of Dalian University of Technology,1993,33(3):351-355.(in Chinese))
[11]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,LYU Jiacai.Method for hydraulic model test of large-scale floating sluice[J].Advances in Science and Technology of Water Resources,2007,27(5):6-9.(in Chinese))
[12]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.(in Chinese))
[13]黄树权,黄少峰,黄国富,等.浮体一字门动水启闭过程的数值模拟研究[C]//佚名.第二十三届全国水动力学研讨会暨第十届全国水动力学学术会议文集.上海:《水动力学研究与进展》杂志社,2011:669-675.
[14]董华洋.浮箱-水平板式浮防波堤水动力特性研究[D].大连:大连理工大学,2009.
[15]陆彦.大型浮箱门在动水中的稳定性分析及试验研究[D].南京:河海大学,2002.
[16]张李萍.浮体闸定位过程水力特性研究[D].南京:河海大学,2007.
[17]王法猛,傅宗甫,吕家才,等.闸站合建枢纽对河口通航影响的模型试验[J].水利水电科技进展,2012,32(5):29-31.(WANG Fameng,FU Zongfu,LYU Jiacai,et al.Model tests on influence of combined construction of sluices and pump stations on estuarine navigation[J].Advances in Science and Technology of Water Resources,2012,32(5):29-31.(in Chinese))
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