Abstract
A new procedure to identify effective contact angles used in the description of the packing surface wetting is proposed. Both non-perforated and perforated surfaces are modelled. The flow of a water and triethyleneglycol (TEG) mixture over inclined, non-corrugated packing sheets was used as a model case. Different microstructures were investigated in a combined experimental and numerical study to determine the effective contact angles best reproducing the experimental film or rivulet widths. The outcome is a simple yet robust approach for modelling the liquid flow on structured packings.
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