Flooding velocity in a counter-current annular two-phase flow

✍ Scribed by H. Imura; H. Kusuda; S. Funatsu

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 825 KB
• Volume: 32
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(77)80199-1

✦ Synopsis

Ah&act

-Ex penmental work on floodmg has been performed concernm g the operation of wetted columns, faIhng film evaporators, updraft condensers, etc However, owmg to the complexity of the phenomenon of floodmg and to numerous factors affectmg It, a sufliclently defimte theory has not yet emerged In response to 011s. the authors performed an experunent whereby the many factors affectmg floodmg were carned out usmg four test tubes and four test hqmds It IS known that, when the relative velocity of a fallmg hqmd 6lm to a counter-current gas reaches a certam value, a wave occurrmg on the ti surface becomes unstable, Its amplnude qruckly mcreases, bndgmg the test tube and floodmg occurs Takmg account of this observation, a theoretical equation was denved by dealmg with the mstabfity problem of such waves and an expenmental correlation worked out on the basis of the derived theoretlcaf equation and expernnental data 1 lNTROLNJCTlON