石油化工高等学校学报2011，Vol.24Issue(3)：82-86,94,6.DOI:10.3696/j.issn.1006-396X.2011.03.020
基础变量选取对输气管道快瞬变流数值模拟的影响
Effect of Selection of Basic Parameters on Simulation of Fast Transients in Natural Gas Pipelines
摘要
Abstract
Based on different selection of the basic parameters, including pressure (p), enthalpy (H), density (p), entropy (s) and flow velocity (υ) , the traditional conservative model of gas transmission pipelines was transformed into 3 types: ppu, pHu and psu model. The method of characteristics was adopted to solve the above three model. The fast transient caused by instantly opening and closing valves in the gas transmission experimental pipeline was simulated with the three models respectively. The results show that the simulation process of the gas pipeline is not sensitive to the selection of the basic parameters. Comparatively, the pHu model owned a slice advantage on accuracy and computing speed over the other two models.关键词
输气管道；快瞬变流；变量选取；特征线法；动态模拟Key words
Gas pipeline/ Fast transient/ Parameter selection/ Method of characteristics/ Dynamic simulation分类
化学化工引用本文复制引用
丁延鹏,李玉星,付俊涛,郝宏娜..基础变量选取对输气管道快瞬变流数值模拟的影响[J].石油化工高等学校学报,2011,24(3):82-86,94,6.基金项目
教育部新世纪人才支持计划(NCET-07-0847) （NCET-07-0847）
国家自然基金资助(51074175)。 （51074175）
