Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Spreading and fingering in spin coating.

Kristi E Holloway1, Piotr Habdas, Naeim Semsarillar

  • 1Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|May 16, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stirring supercooled colloidal liquids at the particle scale.

Physical review. E·2025
Same author

A Simple, Cost-Effective Microfluidic Device Using a 3D Cross-Flow T-Junction for Producing Decellularized Extracellular Matrix-Derived Microcarriers.

Journal of biomedical materials research. Part A·2025
Same author

Hopper flows of deformable particles.

Soft matter·2022
Same author

Correction to "Thermoresponsive and Covalently Cross-Linkable Hydrogels for Intra-Articular Drug Delivery".

ACS applied bio materials·2022
Same author

Thermoresponsive and Covalently Cross-Linkable Hydrogels for Intra-Articular Drug Delivery.

ACS applied bio materials·2022
Same author

Dielectric properties of PVA cryogels prepared by freeze-thaw cycling.

The Journal of chemical physics·2020

Silicone oil drops spread and form fingers on rotating surfaces. Fingering occurs when drop radius is large, with finger number depending on rotation and volume, matching theoretical models.

Area of Science:

  • Fluid dynamics
  • Rheology
  • Surface science

Background:

  • Understanding drop dynamics on rotating surfaces is crucial for industrial processes like coating and printing.
  • Previous research has explored drop spreading but often without considering rotational effects on fingering instability.

Purpose of the Study:

  • To investigate the spreading dynamics and fingering instability of silicone oil drops on a rotating substrate.
  • To compare experimental observations with theoretical predictions from lubrication theory.

Main Methods:

  • Experiments involving silicone oil drops on a rotating substrate with varying rotation speeds and drop volumes.
  • Analysis of drop spreading behavior and contact line stability.
  • Measurement of perturbation growth rates and finger number.

Related Experiment Videos

Main Results:

  • Drop spreading follows theoretical time dependence, albeit with a shifted timescale.
  • Fingering instability initiates when the drop radius exceeds a critical threshold.
  • Observed finger growth rates and the number of fingers align well with lubrication theory predictions.

Conclusions:

  • The study validates theoretical models for drop fingering on rotating substrates.
  • Rotation speed and drop volume are key parameters governing finger formation and morphology.
  • This research provides insights into instabilities in thin liquid films under centrifugal forces.