Fig. 2 represents the computational domain of the Nye tray. The Eulerian framework is utilized to investigate the weeping phenomena. Moreover, the utilized values of Fs for investigating the weeping phenomena are at the lower operation ranges. Based on the previous studies, a no-slip wall boundary condition is considered for the liquid phase, in addition, a free slip boundary condition is taken for the gas phase on the wall [15, 21, 28, 30, and 32]. The liquid and gas phases are water and air at the atmospheric pressure and 25℃. Initially, the volume fractions of water and air for the tray are identified. The water volume fractions of 0.8 and 0.01 are adjusted for the dispersion height and the region above this height, respectively. Moreover, it is presumed that the downcomer is occupied with water to the height of 0.275. The superficial gas velocity is utilized as an initial guess for the gas velocity’s vertical component throughout the computational domain. A uniform horizontal velocity distribution equivalent to the liquid inlet velocity is considered for the froth region as the other initial guess [28]. Also, a parabolic profile is taken for the liquid inlet velocity and the outlet and inlet liquid volume fractions are both presumed to be unity. It is of note that only the liquid is introduced to the downcomer clearance. Similarly, the gas phase goes to the vapor inlet and leaves the vapor outlet with the volume fractions of 1 [28].