Dimension analysis showed that the cavity length and air demands of the aerator with downstream baffler was affected by the Froude number and the geometry of its downstream baffler.

• 通过因次分析，得出了来流Fr和下游贴坎几何尺寸是影响平底下游加设贴坎掺气设施的空腔长度和通气量主要因素，并通过试验实测的回归分析，得出了平底下游加设掺气设施空腔长度和通气量计算的经验公式。