The splash/non-splash boundary upon a dry surface and thin fluid film

Randy L. Vander Wal, Gordon M. Berger, Steven D. Mozes

Research output: Contribution to journalArticlepeer-review

211 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)53-59
Number of pages7
JournalExperiments in Fluids
Issue number1
StatePublished - Jan 2006

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Fluid Flow and Transfer Processes
  • General Physics and Astronomy
  • Computational Mechanics


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