一种高效的准二维管道瞬变流计算方法

孙强; 伍悦滨; 徐莹; JANG Tae Uk

doi:10.6052/j.issn.1000-4750.2016.04.0242

一种高效的准二维管道瞬变流计算方法

1.
哈尔滨工业大学市政环境工程学院, 黑龙江, 哈尔滨 150090;
2.
哈尔滨商业大学能源与建筑工程学院, 黑龙江, 哈尔滨 150028;
3.
金日成综合大学, Department of Mechanics, Pyong Yang 999093, D. P. R. 朝鲜

基金项目: 国家自然科学基金项目（51208160）；省高校青年创新人才培养计划项目（UNPYSCT-2015072）

详细信息

作者简介:
孙强(1985-),男,黑龙江五常人,博士,主要从事管道瞬变流和气液两相瞬变流模拟研究(E-mail:sunqiang1222@163.com);徐莹(1981-),女,黑龙江哈尔滨人,副教授,博士,主要从事石油管道瞬变流模拟研究(E-mail:joexying@126.com);Jang Tae Uk (1962-),男,朝鲜平壤人,副教授,博士,主要从事计算流体力学相关领域研究(E-mail:jtu_rns@163.com).

通讯作者:
伍悦滨(1966-),女,江西南昌人,教授,博士,主要从事瞬变流模拟研究(E-mail:ybwu@hit.edu.cn).

中图分类号: TV134.1
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- 文章访问数: 427
- HTML全文浏览量: 32
- PDF下载量: 100
出版历程
- 收稿日期: 2016-03-31
- 修回日期: 2016-09-28
- 刊出日期: 2017-09-24

AN EFFICIENT METHOD FOR QUASI-TWO-DIMENSIONAL WATER-HAMMER SIMULATION

1.
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China;
2.
School of Energy and Architecture, Harbin University of Commerce, Harbin, Heilongjiang 150028, China;
3.
Department of Mechanics, Kim Il Sung University, Pyong Yang 999093, D. P. R. Korea

摘要

摘要: 为了提高准二维管道瞬变流模型的计算效率，对现有的基于特征线法的准二维模型的算法进行了改进，提出了直接利用一维显式方程计算管道的流量和压力，取代了原算法中需通过数值积分求解平均速度再进一步计算节点压力的方法。该文提出的一维显式方程采用FVS （Flux Vector Splitting）方法，并在水库-管道-阀门系统中，将该方法与两个现有的准二维模型的算法在准确性和计算效率方面进行了比较。结果表明：该文所提出的方法与另外两个算法得到的计算结果基本相同，但是所花费的计算时间更少。因此，该文所提出的方法是一种计算准确并且高效的准二维瞬变流计算方法，适用于管道系统瞬变流的数值模拟分析。
- 瞬变流 /
- 数值模拟 /
- 准二维模型 /
- 管道 /
- 通量向量分裂法
Abstract: In order to increase the computational efficiency of quasi-two-dimensional (quasi-2D) water-hammer models, a method that improves upon an existing quasi-2D scheme in the method of characteristics (MOC) is presented. The proposed method uses one-dimensional (1D) explicit equations to calculate pressure head and discharge, rather than using numerical integration to solve mean velocity as employed in the existing scheme. The 1D explicit equations are developed, based on the flux vector splitting (FVS) method. In a reservoir-pipeline-valve system, the comparisons between the proposed method and two existing quasi-2D schemes show that the proposed method gives virtually the same results as the other two quasi-2D schemes do, but costs less computational time. Therefore, the proposed method is able to simulate transient flow problems with high accuracy and efficiency.
- transient flow /
- numerical simulation /
- quasi-two-dimensional model /
- pipe /
- flux vector splitting method

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参考文献(26)

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文章访问数: 427
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一种高效的准二维管道瞬变流计算方法

通讯作者: 伍悦滨(1966-),女,江西南昌人,教授,博士,主要从事瞬变流模拟研究(E-mail:ybwu@hit.edu.cn).

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出版历程

AN EFFICIENT METHOD FOR QUASI-TWO-DIMENSIONAL WATER-HAMMER SIMULATION

期刊类型引用(11)

其他类型引用(5)

计量

出版历程

目录

通讯作者:
伍悦滨(1966-),女,江西南昌人,教授,博士,主要从事瞬变流模拟研究(E-mail:ybwu@hit.edu.cn).