Aerosol formation in an isothermal stagnation flow

I. M. Kennedy, R. G. Chevalier

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An experiment has been performed in a laminar stagnation point flow in which two non-premixed reactants produced an aerosol of sub-micron particles. The reactants were NH3 and HCl. The rate of mixing of the reactants was determined by the velocity gradient or strain rate of the flow; the response of the aerosol dynamics to the flow field was measured with a laser light scattering technique. Laser Doppler Spectroscopy was used to measure the particle size. It was found that the particle size was independent of the strain rate of the flow. On the other hand, the particle number density decreased as the strain rate increased. It is argued that the intensity of light scattered from the aerosol is, therefore, a measure of the amount of product of the relatively slow NH3-HCl reaction.

Original languageEnglish (US)
Pages (from-to)87-92
Number of pages6
JournalExperiments in Fluids
Volume11
Issue number2-3
DOIs
StatePublished - May 1991

Fingerprint

stagnation flow
Aerosols
Strain rate
aerosols
strain rate
Particle size
Lasers
Light scattering
Particles (particulate matter)
stagnation point
Flow fields
Spectroscopy
lasers
flow distribution
light scattering
gradients
products
Experiments
spectroscopy

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Computational Mechanics
  • Fluid Flow and Transfer Processes

Cite this

Aerosol formation in an isothermal stagnation flow. / Kennedy, I. M.; Chevalier, R. G.

In: Experiments in Fluids, Vol. 11, No. 2-3, 05.1991, p. 87-92.

Research output: Contribution to journalArticle

Kennedy, I. M. ; Chevalier, R. G. / Aerosol formation in an isothermal stagnation flow. In: Experiments in Fluids. 1991 ; Vol. 11, No. 2-3. pp. 87-92.
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