“Whoa! It’s like Spotify but for academic articles.”

Instant Access to Thousands of Journals for just $40/month

Try 2 weeks free now

Droplet-wall collisions: Experimental studies of the deformation and breakup process

Experimental studies of liquid spray droplets impinging on a flat surface have been performed with the aim of formulating an empirical model describing the deposition and the splashing process. Monodisperse droplets with a known viscosity and surface tension, produced by a vibrating orifice generator, were directed towards a rotating disc and the impingement was visualized using an illumination synchronized with the droplet frequency. A rubber lip was used on the rotating disk to remove any film from previous depositions. The test matrix involved different initial droplet diameters (60 < d 0 < 150 μ m), velocities (12 < w < 18 m/s), impingement angles (4° < α < 65°), viscosities (1.0 < μ < 2.9 mPas) and surface tensions (22 < σ < 72 mN/m). The liquids used to establish the different viscosities and surface tensions were ethanol, water and a mixture of water-sucrose-ethanol. One major result from the visualization is a correlation of the deposition-splashing boundary in terms of Reynolds number and Ohnesorge number. Noteworthy is that a distinct correlation between the Re and Oh number, K = Oh · Re 1.25 , is only achieved if the normal velocity component of the impinging droplets is used in these dimensionless numbers. For the case of a splashing droplet, a two-component phase Doppler anemometer was used to characterize the size and velocity of the secondary droplets. The obtained droplet size distributions and correlations between droplet size and velocity around the point of impingement constitute the basis of an empirical numerical model. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Multiphase Flow Elsevier

Loading next page...

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy unlimited access and
personalized recommendations from
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $40/month

Try 2 weeks free now

Explore the DeepDyve Library

How DeepDyve Works

Spend time researching, not time worrying you’re buying articles that might not be useful.

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.

All the latest content is available, no embargo periods.

See the journals in your area

Simple and Affordable Pricing

14-day free trial. Cancel anytime, with a 30-day money-back guarantee.

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Best Deal — 25% off

Annual Plan

  • All the features of the Professional Plan, but for 25% off!
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

billed annually