Deposition of micron liquid droplets on wall in impinging turbulent air jet
| Autor: | Parviz Merati, Jacob Nink, Tianshu Liu, Yong Li, Tom Shieh, Tian Tian |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Fluid Flow and Transfer Processes
Coalescence (physics) Materials science business.industry Turbulence Droplet deposition Computational Mechanics General Physics and Astronomy Fluid mechanics Mechanics complex mixtures eye diseases Vortex Physics::Fluid Dynamics Optics Mechanics of Materials Parasitic drag business Olive oil |
| Zdroj: | Experiments in Fluids. 48:1037-1057 |
| ISSN: | 1432-1114 0723-4864 |
| DOI: | 10.1007/s00348-009-0790-7 |
| Popis: | The fluid mechanics of the deposition of micron liquid (olive oil) droplets on a glass wall in an impinging turbulent air jet is studied experimentally. The spatial patterns of droplets deposited on a wall are measured by using luminescent oil visualization technique, and the statistical data of deposited droplets are obtained through microscopic imagery. Two distinct rings of droplets deposited on a wall are found, and the mechanisms of the formation of the inner and outer rings are investigated based on global diagnostics of velocity and skin friction fields. In particular, the intriguing effects of turbulence, including large-scale coherent vortices and small-scale random turbulence, on micron droplet deposition on a wall and coalescence in the air are explored. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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