[1]汪文锋,黄 思*,郭晨光,等.风载荷作用下的塔群瞬态绕流及受力分析[J].江西师范大学学报(自然科学版),2019,(03):231-236.[doi:10.16357/j.cnki.issn1000-5862.2019.03.03]
　WANG Wenfeng,HUANG Si*,GUO Chenguang,et al.The Study on Transient Flow and Forces of Tower Group under Wind Loading[J].Journal of Jiangxi Normal University:Natural Science Edition,2019,(03):231-236.[doi:10.16357/j.cnki.issn1000-5862.2019.03.03]
点击复制

风载荷作用下的塔群瞬态绕流及受力分析()
分享到：

《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年03期
页码:
231-236
栏目:
流体工程与应用
出版日期:
2019-06-10

文章信息/Info

Title:
The Study on Transient Flow and Forces of Tower Group under Wind Loading
文章编号:
1000-5862(2019)03-0231-06
作者:
汪文锋1; 黄 思2*; 郭晨光2; 叶伟文1; 李茂东1
1.广州特种承压设备检测研究院,广东 广州 510663; 2.华南理工大学机械与汽车工程学院,广东 广州 510641
Author(s):
WANG Wenfeng1; HUANG Si2*; GUO Chenguang2; YE Weiwen1; LI Maodong1
1.Guangzhou Special Pressure Equipment Inspection and Research Institute,Guangzhou Guangdong 510663,China; 2.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou Guangdong 510641,China
关键词:
塔群风载;  瞬态绕流;  涡脱频率;  数值模拟
Keywords:
wind loads on towers;  transient flow around towers;  vortex shedding frequency;  numerical simulation
分类号:
TE 962
DOI:
10.16357/j.cnki.issn1000-5862.2019.03.03
文献标志码:
A
摘要:
以某石化企业的3塔柱作为研究对象,分别对塔群和3个塔柱单独建立计算模型.运用Fluent流动软件,模拟计算3种风速下的塔柱瞬态绕流问题.3个塔柱直径D分别为2.8 m、3.3 m和2.5 m,间距比L/D分别为1.98、2.72和4.69; 雷诺数Re=(1.50～6.65)×106.计算得到了塔柱和塔群的涡脱频率以及所受升力、阻力随时间的变化规律,由此分析了单塔情况下受力和塔群合力的关系,探讨了单塔和塔群的涡脱频率关系及其群体干涉效应,为石化企业的安全运行提供技术支持.
Abstract:
In this work,the three towers of a petrochemical enterprise are selected as the research object,the computational models of the tower group and three towers are established separately.Fluent software is used to simulate the transient flow field around the towers and the group under three wind speeds.The three towers have respectively diameters of 2.8 m,3.3 m and 2.5 m,L/D ratios of 1.98,2.72 and 4.69.And Re=(1.50～6.65)×106.The computations are performed for the vortex frequencies shedding from the towers and the group as well as the variations of lift and drag with time.The relationship between forces acting on a single tower and those on the group is analyzed.The relationship between the vortex frequencies of single tower and the group and the interference effects are discussed,in order to provide technical support for the safety operation of petrochemical enterprises.

参考文献/References:

[1] 顾志福,孙天风,陈强.2个相邻冷却塔风荷载的相互作用[J].空气动力学学报,1992,10(4):519-524.
[2] 沈国辉,刘若斐,孙炳楠.双塔情况下冷却塔风荷载的数值模拟[J].浙江大学学报:工学版,2007,41(6):1017-1022.
[3] Williamson C H.Evolution of a single wake behind a pair of bluff bodies[J].Journal of Fluid Mechanics,1985,159(1):1-18.
[4] 刘友宏.光滑塔器烟囱诱导振动研究[J].科学技术与工程,2015,15(13):1-6.
[5] Alam M M,Moriya M,Sakamoto H.Aerodynamic characteristics of two side-by-side circular cylinders and application of wavelet analysis on the switching phenomenon[J].Journal of Fluids and Structures,2003,18(3/4):325-346.
[6] Lama K,Zou L.Experimental and numerical study for the cross-flow around four cylinders in an in-line square configuration[J].Journal of Mechanical Science and Technology,2007,21(9):1338-1343.
[7] Sayers A T.Flow interference between four equispaced cylinders when subjected to a cross flow[J].Journal of Wind Engineering and Industrial Aerodynamics,1988,31(1):9-28.
[8] Sayers A T.Vortex shedding from groups of three and four equispaced cylinders situated in a cross flow[J].Journal of Wind Engineering and Industrial Aerodynamics,1990,34(2):213-221.
[9] 贺然.高雷诺数下阵列4圆柱绕流流动形态数值模拟[J].四川建材,2016,42(1):57-59.
[10] 胡卫华.基于Fluent的多圆柱体绕流场数值模拟[J].科技导报,2010,28(24):75-78.
[11] 田启龙,王嘉松.双圆柱绕流水动力分析的离散涡数值模拟[J].中国海洋平台,2017,32(3):51-57.
[12] Ian J Sobey.Oscillatory flows at intermediate Strouhal number in asymmetric channels[J].Journal of Fluid Mechanics,2006,125(125):359-373.
[13] Kim H J,Durbin P A.Observations of the frequencies in a sphere wake and of drag increase by acoustic excitation[J].Physics of Fluids,1988,31(11):3260.
[14] Sakamoto H H.A study on wortex shedding from spheres in a uniform flow[J].Journal of Fluids Engineering,1990,112(4):386-392.
[15] 涂佳黄,梁经群,黄橙,等.多塔高层建筑风荷载互扰效应研究[J].湘潭大学学报:自然科学版,2015,37(2):38-44.
[16] 王文焘.石油化工塔型设备基础风荷载计算[J].山西建筑,2016,42(23):51-52.

备注/Memo

备注/Memo:
收稿日期:2018-11-20
基金项目:国家自然科学基金(21878102)和广东省质监局科技(2017CT27)资助项目.
通信作者:黄 思(1962-),男,广西南宁人,教授,博士生导师,主要从事流体机械的教学与科研工作.E-mail:huangsi@scut.edu.cn
更新日期/Last Update: 2019-06-10