気流に伴われて流動する液膜への物質伝達に関する研究 : 第1報,流れ方向濃度変化の予測

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An experimental investigation was made into the absorption of carbon dioxide, CO_2, from concurrently flowing CO_2-laden air into a thin water film in a horizontal duct. We proposed three physical models, CAL1〜CAL3, to explain mass transfer across a sheared non wavy and wavy gas-liquid interface into the flowing thin liquid film. If gas flow was laminar and the flow pattern was smooth surface flow, experimental values agreed well with the estimation by a laminar flow model, CAL1. If the gas flow was turbulent and flow pattern was two-dimensional wave flow, the experimental value agreed well with the estimation using CAL2, in which the film thickness was evaluated using the correlation of the interfacial shear stress. If the flow pattern was pebble wave or ripple flow, CAL3 estimated the experimental values accurately, for gas flow which was turbulent and where the turbulence in the liquid film was also taken into consideration.
社団法人日本機械学会の論文
1994-06-25