中国舰船研究Issue(4)：132-136,5.DOI:10.3969/j.issn.1673-3185.2015.04.020
船舶典型充汽管路水动力特性数值预测
Numerical prediction on the hydrodynamic characteristics for typical ship charging pipes
杨元龙 1李坚波 2孙宝芝 3杨龙滨 3王兴刚1
作者信息
- 1. 中国舰船研究设计中心，湖北武汉 430064
- 2. 海军驻上海江南造船 集团 有限责任公司军事代表室，上海 201913
- 3. 哈尔滨工程大学动力与能源工程学院，黑龙江哈尔滨 150001
- 折叠
摘要
Abstract
A three dimensional calculation model of typical ship charging pipes is established in this pa⁃per,where its hydrodynamic characteristics are investigated using the CFD method. The distribution of key parameters such as pressure,velocity,density,and turbulence kinetic energy are obtained. Based on the prediction mechanism of flow induced vibration,the flow energy,which is closely related to flow induced vibration,is revealed. The calculated results show that the secondary flow phenomenon,occurring from the outer wall to the inner wall,is most prominent at the elbow of charging pipes. This secondary flow could lead to low pressure and density,higher velocity and turbulence kinetic energy with the region. Based on fluid flow-energy distributions,the flow-energy are estimated to reach its maximum value at the elbow;meanwhile,the flow-energy for the inner wall will be higher than that for the outer wall. These hy⁃drodynamic results suggest that the flow induced vibration damage for the inner wall around the elbow could be rather serious,which is then verified with actual test data.关键词
充汽管路/水动力特性/流致振动Key words
charging pipe/hydrodynamic characteristics/flow induced vibration分类
交通工程引用本文复制引用
杨元龙,李坚波,孙宝芝,杨龙滨,王兴刚..船舶典型充汽管路水动力特性数值预测[J].中国舰船研究,2015,(4):132-136,5.
