The discussion centers on deriving the correct momentum balance equation for fluid flow across a sieve tray, particularly focusing on the relationship between liquid depths in different flow regions. The proposed equation involves mass flow rates, pressure differences, and velocities, but the user is struggling to arrive at the correct final form. A specific scenario is presented, where values for liquid depth, velocity, and density ratios are given, prompting a request for physical interpretation and equation formulation. The user seeks clarity on how to accurately represent the physical phenomena occurring in the sieve tray system. Understanding these dynamics is crucial for solving the momentum balance accurately.
