EXP 1-4: Difference between revisions
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The dynamics of the normal impact of a single drop onto a thin wall film of the same liquid is characterized using high-speed shadowgraphy. The initial kinetic energy of the drop is sufficiently high to give rise to the formation of a notable crown (corona) but sufficiently low to avoid any disintegration of the crown. Splashing is thus avoided and the entire dynamics of the drop-film interaction is laminar and rotational symmetric. This makes the data set especially useful for advancement and validation of interface-resolving numerical methods for two-phase flows. To this end, time-resolved experimental data on three characteristic dimensions of the crown are provided for two different impact velocities. | The dynamics of the normal impact of a single drop onto a thin wall film of the same liquid is characterized using high-speed shadowgraphy. The initial kinetic energy of the drop is sufficiently high to give rise to the formation of a notable crown (corona) but sufficiently low to avoid any disintegration of the crown. Splashing is thus avoided and the entire dynamics of the drop-film interaction is laminar and rotational symmetric. This makes the data set especially useful for advancement and validation of interface-resolving numerical methods for two-phase flows. To this end, time-resolved experimental data on three characteristic dimensions of the crown are provided for two different impact velocities. | ||
[[File:Fig_4.png|850px|thumb|center|Fig. 1: Comparison of crown shape (left image) and crown height (right image) between experiment and simulation for moderate impact velocity.]] | [[File:Fig_4.png|850px|thumb|center|Fig. 1: Comparison of crown shape (left image) and crown height (right image) between experiment and simulation for moderate impact velocity.]] | ||
Revision as of 11:44, 14 June 2023
Axisymmetric drop impact dynamics on a wall film of the same liquid
Abstract
Provide a summary of the test-case submission here.
The dynamics of the normal impact of a single drop onto a thin wall film of the same liquid is characterized using high-speed shadowgraphy. The initial kinetic energy of the drop is sufficiently high to give rise to the formation of a notable crown (corona) but sufficiently low to avoid any disintegration of the crown. Splashing is thus avoided and the entire dynamics of the drop-film interaction is laminar and rotational symmetric. This makes the data set especially useful for advancement and validation of interface-resolving numerical methods for two-phase flows. To this end, time-resolved experimental data on three characteristic dimensions of the crown are provided for two different impact velocities.
Contributed by: Bastian Stumpf, Milad Bagheri, Ilia V. Roisman, Cameron Tropea, Jeanette Hussong, Martin Wörner, Holger Marschall — Technical University of Darmstadt and Karlsruhe Institute of Technology
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