高压燃气管道非稳态流动的特征线法模拟研究  

Simulation Research on Unsteady-state Flow for High-pressure Gas Pipeline Based on Characteristic Line Method

作　　者：高兰周[1] 田贯三[1] 赵自军[2] 王启[2] 

机构地区：[1]山东建筑大学,山东济南250101 [2]中国市政工程华北设计研究院,天津300074

出　　处：《煤气与热力》2008年第11期13-19,共7页Gas & Heat

基　　金：国家科技支撑计划课题(2006BAK02B01-01)

摘　　要：采用特征线法对高压燃气管道非稳态流动的数学模型进行了数值求解,考虑能量方程,对燃气管网非稳态流动进行了理论分析,解决了由于忽略能量方程所带来的计算精度低的问题,编制了用气负荷随时间变化时压力、温度、流量沿管道分布的动态模拟程序,给出了计算实例。模拟数据和实际数据非常接近。The numerical solution for mathematical model of unsteady-state flow for high-pressure gas pipeline is conducted by characteristic line method. The energy equation is considered, and the theoretical analysis of unsteady-state flow for gas pipeline network is carried out. The problem of low calculation precision caused by ignorance of the energy equation is solved. The dynamic simulation program of pressure, temperature and flow rate distributed along pipeline during variation of gas consumption load with time is generated, and the calculation example is given. The simulation data are very close to the actual data.

关 键 词：非稳态流动 高压燃气管道 能量方程 特征线 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]