Abstract
In order to study the falling velocity of ice crystals, the drag coefficients of circular cylinders and circular disks were measured by a model experimental method. The terminal velocities 0f falling models in various liquids were measured and the drag coefficient and Reynolds number were computed from the velocities.
The result of the present model experiment was applicable to computation of the falling velocity of snow crystals. Therefore, it may be considered that the drag coefficient of the present experiment is applicable to computation of the falling velocity of ice crystals with using the mass or density and the dimension of them.
