AM06-10-006 気液界面における溶存気体濃度境界層の定量可視化(波浪・砕波・水表面での気体輸送(2),一般講演)

概要

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The relation between the thickness of dissolved gas concentration boundary layer and turbulent lengthscales is investigated theoretically and experimentally. The theoretical results show the boundary layer thickness to be approximately of the order of the Batchelor lengthscale. The boundary layer of dissolved carbon dioxide in a grid-generated turbulence is visualized by using a laser-induced fluorescence technique (LIF). The experimental results support the theoretical prediction. It is concluded by comparing the theoretical results with previous experimental data that the relation between the boundary layer thickness and the Batchelor scale is influenced significantly by the presence of surfactants and the interfacial breaking.
2006-09-05