高压天然气管道泄漏扩散+CFD+数值模拟
- 资料大王PDF
-
0 次阅读
-
0 次下载
-
2023-12-02 21:55:23
微信
赏
支付宝
文档简介:
2015 年
第 5 期
Pipeline Technique and Equipment
2015
No畅
5
收稿日期:2014-
12-
30 收修改稿日期:2015-
04-
13
高压 天然 气管 道泄 漏 扩 散
CFD 数 值 模 拟
周伟国,刘东京,滕卯寅
(同济大学,上海 200092)
摘要:为了降低天然气管道泄漏对环境造成的危害,采用 FLUENT 软件对高压天然气管道泄漏后
甲烷扩散特性进行数值模拟,分别模拟了稳态及非稳态时甲烷浓度分布及速度分布情况;探究不同管
道压力和外界风速对天然气泄漏扩散过程的影响,并通过速度分布图和甲烷浓度分布图分析天然气的
扩散特性和区域。结果表明 :管内压力越大,甲烷射流出口速度越大,甲烷扩散区域越大;风速越大,甲
烷的偏转角度越大,在空气中扩散得越快。
关键词:高压管道; 天然气; 管道泄漏; 气体扩散; CFD
中图分类号:TE973 文献标识码:A 文章编号:1004-
9614(2015)05-
0005-
04
CFD Simulation on Natural Gas Leakage and Diffusion of High-
pressure Pipeline
ZHOU Wei-
guo, LIU Dong-
jing, TENG Mao-
yin
(Tongji University, Shanghai 200092, China)
Abstract: With the objective of reducing the damages of pipeline gas leakage to the environment , numerical simulation on gas
diffusion feature of high-
pressure piping was performed with FLUENT.
The methane concentration and velocity profile at the steady
and unsteady state were simulated, respectively.
The influences of tubing pressure and wind velocity on gas leakage were investiga -
ted,and the gas diffusion feature and area of nature gas were analyzed via the velocity profiles and methane concentration profi......
评论
发表评论