A question regarding flooding
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Today I came across the following statement: At general gas velocities, an increase in the liquid holdup causes the liquid phase to change from a dispersed phase to a continuous phase, while the gas phase changes from a continuous phase to a dispersed phase. In this condition, the gas passes through the liquid layer in the form of bubbles, resulting in pulsations in the gas flow. A large amount of liquid is carried out of the top of the tower, making the operation of the tower extremely unstable and even leading to its failure. This condition is known as flooding or liquid slugging. There are many factors that affect flooding, such as the properties of the filler, the physical properties of the fluid, and the liquid-to-gas ratio in the operation. What I’m quite curious about is exactly what the factors influencing flooding are What are the properties of the filler, and in what specific ways do these properties have an impact? What exactly are the physical properties of fluids? How does the gas-liquid ratio also affect it? Which of my more knowledgeable teachers would be willing to give some guidance to a student? Thank you!
1. The filler is blocked, preventing the liquid phase from flowing downward; at the same time, the gas flow velocity in the areas where there is unobstructed flow increases, which enhances the degree of mist entrainment. 2. The medium tends to foam easily ； Large fluctuations in the medium have introduced a large amount of impurities. 3. The volume of the liquid phase is too large; it can’t descend on its own ； Either the amount of vapor is too high, preventing the liquid phase from descending, or it increases the foaming of the liquid phase.
I think I understand a bit what you mean. Thank you