| 爆震室内气体混合过程的数值模拟 |
| |
| 引用本文： | 党海燕,张奇,崔俊梅.爆震室内气体混合过程的数值模拟[J].北京理工大学学报,2006,26(2):100-103. |
| |
| 作者姓名： | 党海燕 张奇 崔俊梅 |
| |
| 作者单位： | 北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;北京理工大学,爆炸科学与技术国家重点实验室,北京,100081 |
| |
| 基金项目： | 中国科学院资助项目
,
北京理工大学校科研和教改项目 |
| |
| 摘 要： | 气云爆震与燃料/空气的混合程度密切相关. 为研究填充后爆震室内燃料和氧化剂的混合情况,采用大型计算流体力学仿真软件对爆震室内燃料和空气的填充混合过程进行数值模拟,并着重研究了入口直径、入口速度以及填充的燃料与氧化剂的质量比等参数对爆震室内燃料/空气混合均匀所需距离的影响. 计算结果表明,爆震室内燃料/空气混合均匀所需的距离与燃料和空气的入口速度的比值有关,随着燃料入口速度与空气入口速度的比值的增大(减小或不变),乙炔和空气混合均匀所需的距离相应增大(减小或不变).
|
| 关 键 词： | 爆震室 入口直径 入口速度 均匀混合 |
| 文章编号： | 1001-0645(2006)02-0100-04 |
| 收稿时间： | 07 7 2005 12:00AM |
| 修稿时间： | 2005年7月7日 |
Numerical Simulation of Physical Process of Gas Mixing in the Detonation Tube |
| |
| DANG Hai-yan,ZHANG Qi and CUI Jun-mei.Numerical Simulation of Physical Process of Gas Mixing in the Detonation Tube[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006,26(2):100-103. |
| |
| Authors: | DANG Hai-yan ZHANG Qi and CUI Jun-mei |
| |
| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | Gas detonation is close related to mixability of fuel/air.In order to investigate on the mixing of fuel and air in the detonation tube after filling,numerical simulation of filling and mixing processes of fuel/air in the detonation tube was performed by a CFD software,and the influence of inlet(diameter,) mass ratio,inlet velocity on the distance needed for the uniform mixing of fuel/air was researched.The result showed that,the distance needed for the uniform mixing of fuel/air has a relationship with the ratio of fuel inlet velocity and air inlet velocity.The bigger the ratio was,the larger the distance needed for the uniform mixing of fuel/air was. |
| |
| Keywords: | the detonation tube inlet diameter inlet velocity uniform mixing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京理工大学学报》浏览原始摘要信息 |
| 点击此处可从《北京理工大学学报》下载免费的PDF全文 |
|
