|本期目录/Table of Contents|

[1]刘剑,宋莹,刘明浩,等.基于LDA的均直巷道断面风速分布规律实验研究[J].中国安全生产科学技术,2015,11(12):65-71.[doi:10.11731/j.issn.1673-193x.2015.12.010]
 LIU Jian,SONG Ying,LIU Ming-hao,et al.Experimental study on distribution laws of wind velocity in straight roadway section based on LDA[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(12):65-71.[doi:10.11731/j.issn.1673-193x.2015.12.010]
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基于LDA的均直巷道断面风速分布规律实验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年12期
页码:
65-71
栏目:
学术论著
出版日期:
2015-12-30

文章信息/Info

Title:
Experimental study on distribution laws of wind velocity in straight roadway section based on LDA
文章编号:
1673-193X(2015)-12-0065-07
作者:
刘剑12宋莹12刘明浩12刘永红12邓立军12
(1.辽宁工程技术大学安全科学与工程学院,辽宁 葫芦岛 125105;2.矿山热动力灾害与防治教育部重点实验室,辽宁 葫芦岛125105)
Author(s):
LIU Jian12 SONG Ying12 LIU Ming-hao12 LIU Yong-hong12 DENG Li-jun12
(1.College of Safety Science and Engineering, Liaoning Technical University, Huludao Liaoning 125105, China; 2. Key Laboratory of Mine Thermo-motive Disaster and Prevention, Ministry of Education, Huludao Liaoning 125105, China)
关键词:
LDA矿井通风均直巷道断面风速分布
Keywords:
LDA mine ventilation straight roadway section wind velocity distribution
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.12.010
文献标志码:
A
摘要:
针对传统井下测风方法以及传统接触式流速测量方法的局限性,以矩形均直巷道断面风速实验测试为例,利用非接触式测试技术激光多普勒测速仪(LDA)对断面风速进行实验测试。实验表明:在平均风速为3m/s左右的均直巷道内的稳定流动下,断面风速分布近似呈矩形环状封闭波动曲线,测点风速具有极度的脉动现象,但测点速度大小服从正态分布。在不同断面平均风速下,断面轴线上风速分布均近似服从指数函数形式。研究表明,LDA测试技术能够较好的反映实验巷道流场风流湍流脉动特性,可以作为研究矿井通风一系列复杂流动的实验手段。
Abstract:
Aiming at the limitations of traditional underground wind measurement methods and traditional contact flow measurement methods, and taking the experimental tests on the wind velocity in rectangular straight roadway section as example, the experimental tests on the sectional wind velocity by using the non-contact measurement technology of laser Doppler anemometry(LDA). The results showed that under the steady flow in the straight roadway with an average wind velocity of 3m/s, the distribution of sectional wind velocity approximately presents a rectangular annular closed fluctuations curve. The wind velocity of measurement points show the extreme pulsation phenomenon, but the value of velocity belongs to normal distribution. Under different sectional average wind velocity, the wind velocity distribution on the section axis is approximate to obey exponential function form. The study illustrated that the LDA testing technology can better reflect the turbulent pulsation characteristics of the wind flow in the flow field of experimental roadway, and it can be taken as experiment method to study the series complex flow of mine ventilation.

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备注/Memo

备注/Memo:
国家自然科学基金委员会与神华集团有限公司联合资助项目(51174265);国家自然科学基金项目(51574142)
更新日期/Last Update: 2016-01-25