気流にさらされた液滴の滞留位置に乱れ強さの及ぼす影響

概要

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The present study is concerned with experiments of the movement of a liquid droplet in a horizontal circular pipe exposed to air flow injected from a vertical pipe. A water droplet is exposed to air flow on a curved wall. The relation between air flow and the standing position of liquid droplet is examined experimentally. In the case that relative intensity of turbulence of gas flow at the standing position is less than 0.18-0.19, the gas velocity at the standing position agrees well with the analytical value calculated by the equilibrium between the force of adhesion to the wall and the dynamic pressure due to gas flow. As the intensity increases, the gas velocity at the standing position decreases. The relation between the intensity of turbulence and the behavior of a liquid droplet is also discussed statistically.