摘要
对雷诺(Reynolds)方程进行简化得到二度恒定非均匀流运动方程。考虑到非均匀流垂线剪力分布与均匀流不一致,将其差值称附加剪力。应用布辛涅斯克(Boussinesq)假定,最后获得二度恒定非均匀流垂线流速分布公式。计算与水槽试验实测结果符合良好。
The equation of motion for two-dimensional steady ununiform flow is obtained by simplifying Reynolds equation. Considering the difference of vertical shear stress distribution between ununiform flow and uniform flow, the difference is known as additional shear stress. Based on the Boussinesq supposition, the formula of vertical velocity distribution for two-dimensional steady ununiform flow is established.The calculated result is in good agreement with the measured result in laburatory, flume.
出处
《水道港口》
2006年第4期205-210,共6页
Journal of Waterway and Harbor
关键词
流速分布
附加剪力
加速流
减速流
velocity distribution
additional shear stress
accelerating flow
decelerating flow
