压力容器2017，Vol.34Issue(3)：44-49,6.DOI:10.3969/j.issn.1001-4837.2017.03.007
不同结构联箱内涡量场及流量不均匀性分析
Analysis of Vorticity Field and Flow Unevenness in Different Structural Header
张立栋 1祝开麒 1张玲 1李伟伟 2薛治家 3何晓亮4
作者信息
- 1. 东北电力大学 能源与动力工程学院,吉林 吉林 132012
- 2. 华能巢湖发电有限责任公司,安徽 巢湖 238015
- 3. 沈阳工程学院 能源与动力工程学院,辽宁 沈阳 110136
- 4. 赤峰市特种设备检验所,内蒙古 赤峰 024000
- 折叠
摘要
Abstract
The numerical simulation of the header with two different flow structures was completed with the Realizable k-ε RNG turbulence model.The distribution of vorticity was studied on the basis of the vorticity data;the vortexes in the header of different structures at different speed were studied by calculating the vortex flux;the maximum flow unevenness amplitude and the comprehensive flow unevenness amplitude were used to study the vertical inlet header and the curved inlet header quantitatively.The result indicated that the fluid flow was more complicated in the header of vertical inlet under different condition.There was a large number of vortex inside the header.The rotational flow in the header of vertical inlet was also more vigorously.When the inlet velocity was 0.6 m/s,the flow unevenness amplitude of the vertical showed significantly higher than the curved.The flow uneven degree at this time between two different flow structures of header reached to maximum.关键词
联箱/涡量/涡通量/流量不均幅值Key words
header/vorticity/vortex flux/flow unevenness amplitude分类
机械制造引用本文复制引用
张立栋,祝开麒,张玲,李伟伟,薛治家,何晓亮..不同结构联箱内涡量场及流量不均匀性分析[J].压力容器,2017,34(3):44-49,6.
