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Fluid Mechanics and Transport Phenomena
Controlling particle dispersion in a transverse jet by synchronized injection
Article first published online: 10 JUN 2008
DOI: 10.1002/aic.11536
Copyright © 2008 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Campolo, M., Cremese, A. and Soldati, A. (2008), Controlling particle dispersion in a transverse jet by synchronized injection. AIChE Journal, 54: 1975–1986. doi: 10.1002/aic.11536
Publication History
- Issue published online: 10 JUL 2008
- Article first published online: 10 JUN 2008
- Manuscript Revised: 24 APR 2008
- Manuscript Received: 8 MAY 2007
- Abstract
- Article
- References
- Cited By
Keywords:
- transverse jet;
- dispersion;
- segregation;
- microparticles;
- pulsed injection
Abstract
The dispersion produced by a jet injecting microparticles (or droplets) in a cross stream is controlled by the interaction between injected species and large scale flow structures characteristic of the jet in crossflow system. In a previous work we characterized accurately the dynamics of the particles undergoing dispersion under the action of the shear layer vortices (SLV) which form in the jet shear layer. In this article, we propose a strategy to control and possibly optimize the dispersion of species injected in the cross stream. This strategy is based on injecting particle packets (or puffs) synchronized with the time of formation of the shear layer vortices. The possibility to increase or decrease particle dispersion by synchronized, pulsed injection is explored by identifying the relevant parameters of the particle/flow system; the effectiveness of this strategy is verified by exploring a representative sample of the parameter range. © 2008 American Institute of Chemical Engineers AIChE J, 2008