摘要
本文根据前人的实验资料 ,建立了一套计算自掺气水流流速分布的半经验半理论方法。提出了掺气对紊动有抑制作用 ,从而导致近底流速指数分布中指数大于 1/ 7,并使自掺气水流的最大流速比不掺气水流的最大流速有所增大。公式的计算结果与实验数据相对比 ,结果基本一致。
On the basis of the existing experimental data, a method was developed to calculate the velocity profiles of self aerated flow. The viewpoint was put forward that aeration has the effect to decrease the turbulent intensity and increase velocity gradient and maximum velocity on a vertical line, which results in the power of the exponential velocity formula near bottom being greater than 1/7. The calculated velocity profiles are in good agreement with the experimental data.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2002年第3期369-375,共7页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金资助项目 (5 970 90 0 4 )
