水下管道向下泄漏的羽/射流特性

doi:10.11949/j.issn.0438-1157.20160034

化工学报 ›› 2016, Vol. 67 ›› Issue (12): 4969-4975.DOI: 10.11949/j.issn.0438-1157.20160034

水下管道向下泄漏的羽/射流特性

张军¹, 臧晓刚¹, 张园春², 何宏舟¹, 陈怀民¹

1 集美大学机械与能源工程学院, 福建省能源清洁利用与开发重点实验室, 福建厦门 361021;
2 长庆油田勘探开发研究院, 陕西西安 710018

收稿日期:2016-01-08 修回日期:2016-09-19 出版日期:2016-12-05 发布日期:2016-12-05
通讯作者: 张军(1966-),男,博士,副教授。bull0202@sina.com
基金资助:
福建省自然科学基金项目（2014J01201）；福建省科技计划项目（2014H6019）。

Dynamic characteristics of plume/jet from underwater pipe downward leakage

ZHANG Jun¹, ZANG Xiaogang¹, ZHANG Yuanchun², HE Hongzhou¹, CHEN Huaimin¹

1 Fujian Province Key Laboratory of Energy Cleaning Utilization and Development, Jimei University, Xiamen 361021, Fujian, China;
2 Research Institute of Changqing Oil Exploration & Development, Xi'an 710018, Shaanxi, China

Received:2016-01-08 Revised:2016-09-19 Online:2016-12-05 Published:2016-12-05
Supported by:
supported by the Natural Science Foundation of Fujian Province(2014J01201) and the Fujian Provincial Science and Technology Project(2014H6019).

摘要/Abstract

摘要：

对水下管道向下泄漏的羽流特性进行了实验及理论研究。采用拉格朗日控制体积分法建立了向下运动的羽动力模型，并对羽流参数进行了模拟。模拟结果表明模型对羽流半径及长度的预测与实验结果基本相符，但在接近羽流终端时，对羽流半径的预测结果要高于实验值。实验及模拟结果还表明，向下泄漏时羽流的初始动量衰减很快，与向上泄漏时羽流相比，羽流长度很短。随着Froude数的增大，向上羽流的长度增长较大，而向下羽流的长度却增长缓慢。

关键词: 水下管道, 向下泄漏, 羽流动力特性, 数值模拟, 实验研究

Abstract:

The plume dynamic characteristics from underwater pipe downward leakage are experimentally and theoretically investigated. The Lagrangian integral method is used to establish the dynamic model of downward plume. The model is numerically solved and the main plume parameters are obtained. The simulated results show that the simulated values in plume radius and length are generally consistent with the experimental values, but the simulated radius is higher than experiment value in area near plume terminal. The experimental and simulated results also show that for downward leakage the initial momentum of plume quickly decays and the plume length is very short compared with upward leakage. With increasing Froude number, the maximum length of upward plume rapidly grows while the maximum length of downward plume slowly grows.

Key words: underwater pipe, downward leakage, plume dynamic characteristics, numerical simulation, experimental investigation

中图分类号:

TQ021.1
X55

张军, 臧晓刚, 张园春, 何宏舟, 陈怀民. 水下管道向下泄漏的羽/射流特性[J]. 化工学报, 2016, 67(12): 4969-4975.

ZHANG Jun, ZANG Xiaogang, ZHANG Yuanchun, HE Hongzhou, CHEN Huaimin. Dynamic characteristics of plume/jet from underwater pipe downward leakage[J]. CIESC Journal, 2016, 67(12): 4969-4975.

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水下管道向下泄漏的羽/射流特性

Dynamic characteristics of plume/jet from underwater pipe downward leakage

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