気水混合流に関する研究 : 垂直上昇管について

概要

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This report consists of the results of the following three experiments on the upward flow of air-water mixtures in a vertical tube having an inside diameter of 51mm. The flow rates include the range of 200 to 5000 kg/h for the water and 0 to 45 kg/h for the air. (1) Observation of the flow states. (2) Measurement of the static pressures along the tube. From these values, the volume rate of air in the tube and the relative velocity of air are obtained by calculation. (3) Measurement of the tube wall temperature under a constant heat rate. The results of the experiment (2) show that the relative velocity increases linearly to the increase of the air flow rate. A tentative correlation is presented about the drag coefficient of the force, which is acting between the air and the water owing to the relative velocity. The results of the experiment (3) show that the temperature rise of the tube wall does not occur by increasing of the air flow rate in this experimental range.
一般社団法人日本機械学会の論文
1957-08-25