In this paper, a series of experiments were carried out on the air concentration distribution. In the cavity zone, the air bubble frequency distribution was similar to the air concentration distribution. The air bubbl...In this paper, a series of experiments were carried out on the air concentration distribution. In the cavity zone, the air bubble frequency distribution was similar to the air concentration distribution. The air bubble frequency increased from the bottom and then decreased near the tmaerated black water region. The position of the maximum air bubble frequencyfmax moved downwards. At the air-water cross section, the relationship between the air bubble frequency and the air concentration was self-similar, the position of the maximum air bubble frequency caused by the air-water discontinuity gradually approached C = 0.50 with the development of aeration. Meanwhile, the dimensionless air bubble frequency in the cavity zone followed a parabolic function.展开更多
文摘In this paper, a series of experiments were carried out on the air concentration distribution. In the cavity zone, the air bubble frequency distribution was similar to the air concentration distribution. The air bubble frequency increased from the bottom and then decreased near the tmaerated black water region. The position of the maximum air bubble frequencyfmax moved downwards. At the air-water cross section, the relationship between the air bubble frequency and the air concentration was self-similar, the position of the maximum air bubble frequency caused by the air-water discontinuity gradually approached C = 0.50 with the development of aeration. Meanwhile, the dimensionless air bubble frequency in the cavity zone followed a parabolic function.
