The splash/non-splash boundary upon a dry surface and thin fluid film
| Autor: | Steven D. Mozes, Gordon M. Berger, Randy L. Vander Wal |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Fluid Flow and Transfer Processes
Surface (mathematics) Splash Materials science business.industry Physical constant Computational Mechanics General Physics and Astronomy Boundary (topology) Reynolds number Mechanics Isothermal process symbols.namesake Optics Mechanics of Materials High-speed photography symbols Thin film business |
| Zdroj: | Experiments in Fluids. 40:53-59 |
| ISSN: | 1432-1114 0723-4864 |
| DOI: | 10.1007/s00348-005-0045-1 |
| Popis: | On the basis of empirical data, power-law boundary relations are formulated to delineate the splash and non-splash regions on dry surfaces or thin films under isothermal conditions, using the Ohnesorge and Reynolds numbers. Approximation of the relations permits cancellation of fundamental fluid physical constants to give simplified formulas which provide insight into the governing parameters describing splashing and non-splashing behaviors. Thus, for a droplet impinging upon a dry solid surface, the splash/non-splash border is well described by √Ca = 0.35. For a drop impinging upon a thin fluid film, the analytical simplification yields a boundary described by √We = 20. For both expressions, values greater than the numerical value result in splashing. |
| Databáze: | OpenAIRE |
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