Droplet Breakup in High-Speed Gas Flows
- Creators
- Meng, Jomela C.
- Colonius, Tim
Abstract
Numerical simulations are performed to study the breakup of water cylinders in the flow behind normal shocks. The computational setup is similar to previous experiments (Igra and Takayama, 2001, 2003). We examine the qualitative features of the so-called stripping breakup observed in the numerical results. Two interesting flow features are discussed: the existence of recirculation regions and an upstream jet in the wake. Various integral quantities associated with the cylinder's deformation and acceleration are computed and compared with the experimental results, with generally good agreement. Furthermore, calculations of the velocity and acceleration of the cylinder's center of mass provide an estimate of the unsteady drag coefficient which is approximately constant over the initial breakup period.
Additional Information
Presented at the "8th International Conference on Multiphase Flow, ICMF 2013, Jeju, Korea, May 26–31, 2013. #2013-488. Acknowledgments: We are grateful to Vedran Coralic who developed the flow solver and graciously shared the source code with us. Also, thanks to Guillaume Blanquart for his insight and guidance in many useful discussions.Attached Files
Published - MengColonius2013-488.pdf
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Additional details
- Eprint ID
- 67395
- Resolver ID
- CaltechAUTHORS:20160526-114025207
- Created
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2016-05-26Created from EPrint's datestamp field
- Updated
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2020-03-09Created from EPrint's last_modified field