Aerosol sizing with a slotted virtual impactor
A theoretical analysis of a two-dimensional jet of ideal fluid impinging normally upon a void has been extended to include fluid deflecting plates of finite length inclined at arbitrary angles to the incident jet. Particle trajectories were numerically simulated for various theoretically admissible instrument geometries. Salient features of the particle sizing effectiveness of the device were determined for a range of void space openings h/w > 1 combined with jet-to-plate spacings s/w ranging from 0 to 2, at two fluid deflecting plate angles ..beta.. = 60, 90/sup 0/. It was found numerically that internal particle losses were substantially reduced when the void h/w tends toward h/sub lim//w, its theoretical limiting value, and that instrument performance in general improved at smaller ..beta...
- Research Organization:
- Univ. of Illinois, Urbana
- OSTI ID:
- 6011535
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 65:1; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two-dimensional virtual impactors. Final report
Development of an aerosol size classifier. Progress report, May 31, 1977--January 31, 1978
Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL MONITORING
AEROSOLS
AIR POLLUTION
AIR POLLUTION MONITORS
AIR SAMPLERS
COLLOIDS
DISPERSIONS
LABORATORY EQUIPMENT
MEASURING INSTRUMENTS
MONITORING
PARTICLE IDENTIFICATION
PARTICLE SIZE
POLLUTION
SAMPLERS
SIZE
SOLS