摘要
本文对明渠自掺气水流均匀流区掺气浓度分布的Wood计算模型建立中的两条基本假设进行了改进,在考虑掺气水流水气二相间相互作用的条件下,建立了气泡上浮速度和紊动扩散系数的计算式,并运用紊动扩散方程,导出了掺气均匀流掺气浓度分布的计算公式。计算值与实测值吻合良好。
In this paper,the two assumptions in Wood's aerated concentration distribution model for open channel self-aerated flows in uniform aerated flow region are improved.The calculating models of turbulent diffusion are established under consideration of the interaction between air phase and water phase in aerated flow.By using turbulent diffusion equation,the formula for calculating the air concentration distribution in uniform aerated flow region is derived.The calculation results agree wall with the measured data.
出处
《四川水力发电》
1992年第2期45-49,共5页
Sichuan Hydropower
关键词
明渠
WOOD模型
水流掺气
浓度
high velocity flow, open channel self-aoratod flow, aerated concentration, Wood's model.
