摘要
对由连续性方程、动量方程和能量方程构成的液体管道瞬变流动数学模型,采用特征线法进行求解,并用显式特征差分法得到了特征方程的差商方程,求出了瞬变流动时管道各个参数的解析解。对离心泵启动工况进行数值模拟的结果表明,所提出的模型处理方法切实可行。
Characteristic method is adopted to solve a mathematical model consisted of continuity Equation,momentum equation and energy equation for transient flow of liquid pipelines,and characteristic equation’s difference quotient equation is obtained with explicit characteristic difference method and analytical solution for every parameter of pipelines at transient flow.Numerical simulation on start-up condition of centrifugal pump is made.Result shows that the method presented for solving the mathematical model is achievable.
出处
《油气储运》
CAS
北大核心
2010年第4期263-265,共3页
Oil & Gas Storage and Transportation
基金
中国石油重大科技专项
07-02Z-01-05
四川省重点学科建设项目
SZD0416
四川省教育厅资助科研项目
09ZB097
关键词
液体管道
瞬变流动
特征线
中心差分法
liquid pipeline,transient flow,characteristic method,central difference method
