Weeping was investigated using some tests and a numerical model. The
tests were performed within a 1.22 m-diameter pilot-scale column
including two chimney trays and two Nye test trays by air-water system.
The rates of weeping were measured in Nye trays with two heights of the
weir and a 5% hole area. Moreover, the weeping rate in outlet half and
inlet half of the Nye tray and the total weeping rate were calculated.
Afterward, an Eulerian-Eulerian CFD technique was used in the current
study. The results show good consistency between the attained CFD
findings and the experimental data.