南水北调与水利科技Issue(3)：108-111,126,5.DOI:10.13476/j.cnki.nsbdqk.2014.03.024
异型变径高压喷气管的数值模拟
Numerical Simulation of High Pressure Jet Tube with Abnormal Shape and Variable Diameter
邓燕华 1邓龙龙 2涂群岚 3徐典 4罗珺5
作者信息
- 1. 湖南大学 土木工程学院，长沙 410082
- 2. 江西建设职业技术学院 土木系，南昌 330200
- 3. 江西海航建设科技有限公司，南昌 330200
- 4. 江西建设职业技术学院 土木系，南昌 330200
- 5. 重庆科技学院 建筑工程学院，重庆 401331
- 折叠
摘要
Abstract
The tube w ith abnormal shape and variable diameter has been w idely used recently, but it has a complex stress distri2 bution in the pipeline which has bought a lot of problems for engineering design and construction. Cracking often occurs in the pipelineinthepracticalapplications,resultinginadverseeffectssuchascuttingoffwaterandelectricitysupply,soitisnecessa2 ry to carry out numerical simulation analysis before design and construction. In this paper, the finite element analysis softw are FLUENT was used to simulate thedistribution of fluid velocity and pressure in the tube with abnormal shape and variable di2 ameterunderthesteadyandunsteadyflow conditions.Thesimulationresultsshowedthatthemiddlesectionofthetubehasthe maximum fluid velocity and minimum pressure under steady flow conditions,the one2third transition section in the entrance has themaximumpressureunderunsteadyflowconditions,andthepressurevariesfromsmalltolargetosmallintheentrancesec2 tion and varies from large to small to large in the exit section.关键词
异型变径管/高压喷管/边界条件/压强分布/数值模拟Key words
tube-w-ith-abnormal-shape-and-variable-diameter/high-pressure-jet-tube/boundary-conditions/pressure-distribution/numerical-simulation分类
水利科学引用本文复制引用
邓燕华,邓龙龙,涂群岚,徐典,罗珺..异型变径高压喷气管的数值模拟[J].南水北调与水利科技,2014,(3):108-111,126,5.
