Abstract:
To explore the formation mechanism of the disturbance wave from the perspective of accurately predicting the properties of the liquid droplet/film mass transport and dryout scenario, the high-speed camera and conductivity-based techniques are employed to visualize and measure the evolution behaviors of the interfacial waves and the liquid film thickness respectively. The millisecond-scale ripple waves induced by turbulent gas as precursors experience a series of second-scale self-convolution and evolve the random distribution of disturbance waves, and the time interval between the disturbance waves can be predicted statistically by the gamma distribution with an order n which increases with the gas superficial velocities but appears to be independent of the liquid superficial velocity.