摘要
提出非定常流动下管道径向振动控制方程,采用特征线法和有限差分法,并基于阀门快速关闭所引起瞬态压力突变的假设,求解瞬态压力突变下管道径向振动模型。通过数值计算与模型对比发现,该模型具有较好的稳定性。计算结果表明,管道径向振动对流动压力的影响不明显。
The governing equation of transverse vibration for pipe conveying fluid with unsteady velocity was derived and solved. The solution was based on the assumption that the pipe was excited by transient pressure which occured from fast valve closing. The method of characteristic （MOC） and finite difference method （FDM） were used. Numerical application was done for this model and the models from old researchers were used to verify the model. The results show that the model is stable and the effect of the pipe vi- bration on the pressure is very small.
出处
《机床与液压》
北大核心
2010年第13期40-43,共4页
Machine Tool & Hydraulics
关键词
瞬态压力
管道振动
特征线法
有限差分
Transient pressure
Transverse vibration
Method of characteristic
Finite difference method
