高压燃气环状管网不稳定流分析  

Analysis of Unsteady Flow in High-pressure Gas Looped Network

作　　者：丁国玉[1] 

机构地区：[1]北京市城市规划设计研究院,北京100045

出　　处：《煤气与热力》2015年第11期33-42,共10页Gas & Heat

摘　　要：建立燃气管网不稳定流数学模型,基于燃气混合过程,推导三通、四通非管元件数学模型,解决当前模型不适用于环状管网的问题。对环状管网不稳定流数学模型的边界条件、方程封闭性、初始条件及解法进行分析,给出算例。The mathematical model of the unsteady flow in gas network is established. Based on the gas mixing process, the mathematical model of tee and cross non-pipe elements is deduced, and the inapplica- bility of the current mathematical model to the looped network is solved. The boundary condition, the equation closure, the initial condition and the solution of the mathematical model of the unsteady flow in looped network are analyzed. The calculation example is given.

关 键 词：环状管网 不稳定流 非等温 非管元件 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]