[1]王 怡,疏艺波,黄艳秋,等.浮射流速度场和断面流量规律特性的研究[J].西安建筑科技大学学报:自然科学版,2014,46(06):839-843.[doi:10.15986/j.1006-7930.2014.06.013]
　WANG Yi,SHU Yibo,HUANG Yanqiu,et al.The study on the characteristics of velocity field and section flow rate of buoyant jet[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(06):839-843.[doi:10.15986/j.1006-7930.2014.06.013]
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浮射流速度场和断面流量规律特性的研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年06期
页码:
839-843
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
The study on the characteristics of velocity field and section flow rate of buoyant jet
文章编号:
1006-7930(2014)06-0839-05
作者:
王 怡1; 疏艺波1; 黄艳秋1; 周 宇1; 任晓芬1; 2
(1西安建筑科技大学环境与市政工程学院,陕西 西安 710055;2 河北工程大学城市建设学院,河北 邯郸 056038)
Author(s):
WANG Yi1;  SHU Yibo1;  HUANG Yanqiu1;  ZHOU Yu1;  REN Xiaofen1; 2
(1 School of Environment and Municipal Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China; 2 Institute of Urban Construction, Hebei University of Engineering, Handan 056038, China)
关键词:
浮射流; 阿基米德数; 数值模拟; 流量
Keywords:
buoyant jet;  archimedes number ( Ar);  numerical simulation;  flow rate
分类号:
TU398.9
DOI:
10.15986/j.1006-7930.2014.06.013
文献标志码:
A
摘要:
在工业生产过程中经常产生大量高温含尘浮射流,研究浮射流的流动规律能从根本上使此类浮射流得到有效控制.在 实验误差验证的基础上,运用数值模拟方法研究了浮射流的速度场和断面流量,研究表明:浮射流在初始段轴心速度递增率随阿基米德数(Ar)数增大而增大,在充分发展段轴心速度随断面高度的增高而减小;在同一高度下,浮射流断面流量与初始温度、初始速度和出口尺寸成正比;并分别提出了在浮射流断面高度大于和小于出口尺寸两种条件下,浮射流断面流量受温度、速度及出口尺寸综合影响的计算式,从而补充浮射流上方排风罩的设计计算依据.
Abstract:
A large amount of high temperature buoyant jets with dust is produced in the process of industrial production. The study on the principle of the buoyant jet flow field is therefore aimed at bringing such jet flow into effective control. Based on the error verification by experimental method, the velocity field and the section flow rate of the buoyant jet were studied by numerical simulation in this paper. The results showed that at the beginning section the axis velocity growth rate of the buoyant jet increased as the Archimedes number (Ar) increased and at the fully developed section the axis velocity decreased as the section height increased. The buoyant jet section flow rate was proportional to its initial temperature, initial velocity, and outlet size at the same height. A calculation formula on the section flow rate was presented as it is jointly influenced by the temperature, velocity and the outlet size under the conditions when the height of the flow section is respectively larger or smaller than the size of outlet. These results complemented the design basis of the exhaust hood over the buoyant jet.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-04-08   修改稿日期:2014-10-08
基金项目:国家自然科学基金重点项目(51238010); 国家杰出青年基金项目(51425803)
作者简介:王怡(1970-),女,教授,博士生导师,主要从事建筑通风理论及其在实际中应用研究.E-mail:wangyi6920@126.com
更新日期/Last Update: 2015-09-01