傾斜回転面上の液膜の挙動

概要

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The thickness of liquid film and the transition of liquid film to ligament formation were measured by use of the optical method for rotating conical and spherical surfaces with inclined axis of 45° and 60°. a) For the thickness of liquid film, the relationship between the experimental value and the approximated theoretical solution is summarized as follows : the liquid film observed agrees quite well with the theoretical solution for 2<Re<10, but a considerable error, depending on non-homogenous flow pattern, was observed for 10<Re<140, where Re is based on volumetric flow rate. b) For the transition of liquid film to ligament formation on both conical and spherical surfaces, the splitting position of liquid film observed by use of the stroboscopy is well correlated by the equation : Q+Reω-1/2We-0.110sinα+0.777=-0.1665sinα+0.178 where Q+ denotes dimensionless volumetric flow rate, Reω is based on angular velocity and α is the inclined angle.
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