E202 水平ミニチャンネル内気液二相流の流動特性(OS-10 混相流動(2),一般講演,地球温暖化防止と動力エネルギー技術)

概要

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Accurate prediction of the interfacial area concentration is essential to successful development of the interfacial transfer terms in the two-fluid model. Mechanistic modeling of the interfacial area concentration entirely relies on accurate local flow measurements over extensive flow conditions and channel geometries. From this point of view, accurate measurements of flow parameters such as void fraction, interfacial area concentration, gas velocity, bubble Sauter mean diameter, and bubble number density were performed by the image processing method at five axial locations in horizontal bubbly flows using 1.03 mm-diameter pipe. In the experiments, the obtained data give near complete information on the time-averaged local hydrodynamic parameters of two-phase flow. These data can be used for the development of reliable constitutive relations which reflect the true transfer mechanisms in two-phase flow.
社団法人日本機械学会の論文
2008-06-18