1. A critical review of the flooding literature;Bankoff,1986
2. Air-water counter-current annular flow in vertical tubes;Bharathan;Report EPBI-NP-786,1978
3. The effect of viscosity on the flooding conditions in wetted wall columns;Clift;Chem. Engng Sci.,1966
4. Falling liquid films with counter-current air flow in vertical tubes;Feind;VDI Forsch.,1960
5. Measurement of liquid holdup for air-water mixtures flowing upwards in a vertical tube;George;Report AERE-M2420,1975