Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 08, 2024 - September 11, 2024
The maximum height of the crown produced when a single droplet impinges on a stationary liquid film was investigated numerically using the numerical analysis code JUPITER. Only We number, which represents the inertia force, and Eo number, which represents the gravity term, were changed in the analysis. The results show that the maximum crown height increases as the We number increases, and that when the Eo number is smaller than 0.4, the crown is not affected by gravity, but when the Eo number is larger than 0.4, the crown becomes affected by gravity. Until now, it has been thought that gravity has no effect on splash phenomena, but it was found that gravity affects the process of crown formation, and accordingly, gravity is thought to have an effect on splash as well.
