ISSN Online: 2377-424X
International Heat Transfer Conference 12
Shadowgraphic observation of surface waves on a water film falling inside a vertical tube and the associated gas absorption
要約
The dynamics and the associated gas absorption rates of naturally evolving and periodically triggered surface
waves on water film falling inside a vertical tube have experimentally been investigated. It was found that the
transition from laminar to turbulent flow occurs within Reynolds number range of 400 ∈ Re ∈ 700, along with a drastic increase in the Sherwood number Sh. Furthermore, a new transition was found to occur at Re ~ 40 in the laminar flow region, where the dynamics of waves significantly changes and a sudden decrease in the power n of
the correlation Sh = CRen is observed.