If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Open Access Real-Time Direct Charge Measurements of Microdroplets and Comparison with Indirect Methods

Download Article:

Abstract:

The charging of micrometer-sized droplets in an electric field was examined experimentally using both direct and indirect droplet-charge measurements. Liquids with different dielectric constants (water, ethanol, and mineral oil) were studied. A specially designed low-noise charge detector was used directly to measure individual droplet charge. The total charge and droplet mean charge for an ensemble of droplets were obtained indirectly by current measurements. These were coupled with phase-Doppler anemometer droplet diameter, velocity, and flux measurements. Individual droplet charge also was determined indirectly via droplet trajectory analysis coupled with high-speed digital photography. All three methods were compared. In general, the droplet charge was found to depend on its position inside the charger, its dielectric constant, and the magnitude of the applied electric field.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/02786821003591802

Affiliations: Particle Dynamics Laboratory, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana, USA

Publication date: April 1, 2010

More about this publication?
Related content

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more