Fluctuant characteristics of two-phase flow behind a bottom aerator

摘要

Experimental observations show that the random process of two-phase flow behind an aerator is an ergodic process and its amplitude distribution is similar to a normal distribution. The maxi- mum pressure fluctuation is at the re-attachment point where the jet-trajectory flow over the aerator re- attaches to the bottom of the channel, and its amplitude is 2-3 times larger than when there is no aer- ator.