Hydrodynamics of a submerging drop: Lined structures on the crown surface
- 34 Downloads
Macrophotography and high-speed videofilming are used to investigate the material transfer in a falling drop upon collision with the surface of a fluid at rest. In the experiments the drops of colored water, milk, mineral oil, and seed oil fell in pure or colored water. Emphasis was placed on recording the pattern of the drop material spreading over the surface of the receiving fluid. On the continuous surface of the primary cavity and the crown the drop material is concentrated in the form of thin fibers which form a regular streaky or netlike pattern in which triangular, quadrangular, and pentagonal cells are expressed. The cell rows are ordered in the form of layers on the lateral walls and the bottom of the cavity. The fiber dimensions and the degree of their expressiveness vary in the process of flow evolution. The upper row of structures on the crown surface is formed by vertical fibers.
Keywordsdrop impact surface tension coefficients splashes capillary waves
Unable to display preview. Download preview PDF.
- 4.O. G. Enqel, “Crater Depth in Fluid Impacts. ” J. Appl. Phys. 37, 1798 (1966).Google Scholar
- 5.Yu. D. Chashechkin and V. E. Prokhorov, “Fine Structure of the Splash upon the Drop Fall on the Free Surface of a Fluid at Rest,” Dokl. Ross. Akad. Nauk 436, 768 (2011).Google Scholar
- 8.V. E. Prokhorov and Yu. D. Chashechkin, “Sound Generation upon the Drop Fall on theWater Surface,” Akust. Zh. 57, 792 (2011).Google Scholar
- 10.Yu. D. Chashechkin and V. E. Prokhorov, “Hydrodynamics of Drop Impact: Short Waves on the Crown Surface,” Dokl. Ross. Akad. Nauk 451, 41 (2013).Google Scholar
- 12.S. A. M. Perryman and J. S. West, “Splash Dispersal of Phyllosticta Citricarpa Pycnidiospores fromInfected Citrus,” EFSA. Supporting publication No. 2014-EN-560 (2014).Google Scholar
- 14.H. Oertel, Prandtl–Führer durch die Strömungslehre, Vieweg Verlag (2002).Google Scholar
- 15.D. Eisenberg and W. Kauzmann, The Structure and Properties of Water, Oxford Univ. Press, New York (1969).Google Scholar