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Updated: Jul 11, 2026
07:08
Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
Published on: August 18, 2018
Breakup and atomization of a stretching crown
Ilia V Roisman1, Tatiana Gambaryan-Roisman, Olympia Kyriopoulos
1Darmstadt University of Technology, Faculty of Mechanical and Process Engineering, Petersenstrasse 30, 64287 Darmstadt, Germany. roisman@sla.tu-darmstadt.de
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 13, 2007
Summary
Microgravity spray impacts create complex splash phenomena, including film formation and droplet breakup. Sheet stretching significantly influences interjet distances, aligning experimental results with theoretical predictions.
Area of Science:
- Fluid dynamics
- Microgravity science
- Surface phenomena
Background:
- Understanding liquid behavior under microgravity is crucial for space applications.
- Spray impact dynamics influence processes like fuel injection and material coating.
Purpose of the Study:
- To experimentally and theoretically investigate splash dynamics from spray impact in microgravity.
- To identify and analyze different splash scenarios and their governing mechanisms.
Main Methods:
- Experimental observation of splash formation, film deposition, sheet propagation, and droplet creation.
- Theoretical analysis using linear stability analysis to predict interjet distances.
- Comparison of experimental data with theoretical predictions.
Main Results:
- Identified three splash scenarios: cusp formation/jetting, sheet destruction/capillary breakup, and rim merging.
- Collected experimental data on splash geometrical parameters.
- Demonstrated the significant influence of sheet stretching on interjet distances.
Conclusions:
- Experimental measurements of interjet distances closely match theoretical predictions.
- Sheet stretching is the primary factor responsible for the observed long interjet distances.
- The study provides a comprehensive understanding of splash dynamics in microgravity environments.
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