Empirical model for the maximum spreading diameter of low-viscosity droplets on a dry wall

Juhyeong Seo, Jae Seong Lee, Ho Young Kim, Sam S. Yoon

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


While many studies have explored droplet impacts using water, glycerin, or a water-glycerin mixture, few studies have investigated droplet impacts using low-viscosity fluids, such as hydrocarbons, which are commonly used in the automobile and aerospace industries. In the present study, the maximum spreading diameter of gasoline, isooctane, and ethanol droplets on an aluminum substrate was investigated. An empirical model with an accuracy of 5% error was proposed. The working fluid viscosity range was 0.45. <. μ<. 1.29. mPa. s, and the droplet impact velocity range was 0.37. <. V<. 4.04. m/s for a droplet diameter of 2.5. mm. The experimental ranges for the Reynolds number and the Weber number were 560. <. Re<. 15,000 and 12. <. We<. 1,600, respectively.

Original languageEnglish
Pages (from-to)121-129
Number of pages9
JournalExperimental Thermal and Fluid Science
Publication statusPublished - 2015 Feb 1


  • Droplet impact
  • Empirical model
  • Low viscosity
  • Maximum spreading diameter
  • Solid wall

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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