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[1]蒋明.液体管道非稳定流动摩阻计算[J].油气储运,2000,19(4):19-22.[doi:10.6047/j.issn.1000-8241.2000.04.005]
　Jiang Ming.Calculation of Unsteady Flow Friction in Liquid Pipeline[J].Oil & Gas Storage and Transportation,2000,19(4):19-22.[doi:10.6047/j.issn.1000-8241.2000.04.005]
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液体管道非稳定流动摩阻计算

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 19 期数: 2000年4期 页码: 19-22 栏目: 出版日期: 1900-01-01
Title:
Calculation of Unsteady Flow Friction in Liquid Pipeline
作者:
蒋明
中国人民解放军重庆后勤工程学院
Author(s):
Jiang Ming
关键词:
管道; 液体; 流动; 稳定性; 摩阻; 计算; 方法
Keywords:
pipeline; fluid; flow; stability; friction; calculation; method
DOI:
10.6047/j.issn.1000-8241.2000.04.005
摘要:
管道中非稳定流动的分析方法主要有频域法和时域法。非线性摩阻的存在给非稳定流动的分析带来一定困难,通常的作法是认为瞬态流动下的摩阻等于稳定流动下的摩阻,但对于管道非稳定流动的长时间的动态模拟,用传统的“拟稳态”假设计算管道摩擦阻力及相关压头损失不够准确,采用频率相关摩阻模型可改变这一情况。给出了频率相关摩阻的计算公式及在特征线法中的具体应用。
Abstract:
The main analytical method of unsteady flow in pipelines includes frequency domain analysis and time domain analysis. The existence of the non-linear friction makes the analysis difficult. Usually,the pipeline friction in unsteady flow is regarded as to be equal to that under the steady-state flow. But for long period dynamic simulation of unsteady flow in liquid pipelines,using the conventional "quasi-stationary" hypothesis to calculate the unsteady headless was insufficient. The frequency-dependent friction model can change this situation. Presented in this article is the formula of frequency-dependent friction and its use is MOC (Method of Characteristics).

参考文献/References:

1 张付卿:不可压缩单相流体紊流区沿程阻力计算,油气储运.1999 18(2).
2 蒲家宁:管道水击分析与控制,机械工业出版社(北京),1991.
3 蔡亦钢:流体传输管道动力学,浙江大学出版社(杭州),1990.
4 betamio de Almeida A. and koelle E.:Fluid transients in pipe networks Computational Mechanics Publications,1992.

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备注/Memo

收稿日期:1999-8-9。
作者简介:蒋明,助教,1972年生,1994年毕业于中国人民解放军后勤工程学院油料储运工程专业,获硕士学位.现在中国人民解放军后勤工程学院油料装备教研室从事教学和科研工作.

更新日期/Last Update: 1900-01-01