摘要
研究了在谐波压力梯度作用下圆管内层流振荡流的流速分布形态、断面平均流速、驱动功率损耗及摩擦特性 ,并对管内单方向定常流的范宁摩擦系数公式进行扩展 ,建立了用于管内振荡流的摩擦系数计算式。摩擦系数理论计算结果与实验显示了较好的一致性。
The profile of axial velocity, cross-sectional-mean velocity, power dissipation and frictional characteristics of oscillatory tube flow arisen by harmonic pressure gradient are investigated analytically. A formula for fanning frictional efficient of oscillatory tube flow is developed by expanding that for unidirectional steady tube flow. The theoretical results show a good agreement with that of experiments.
出处
《应用力学学报》
CAS
CSCD
北大核心
2003年第3期43-46,共4页
Chinese Journal of Applied Mechanics
