INSTANTANEOUS AEROSOL DYNAMICS IN A TURBULENT FLOW

Abstract

Dibutyl phthalate aerosol particles evolution dynamics in a turbulent mixing ayer is simulated by means of direct numerical simulation for the flow field and he direct quadrature method of moments for the aerosol evolution. Most particles re nucleated in a thin layer region corresponding to a specific narrow emperature range near the cool stream side. However, particles undergo high rowth rate on the hot stream side due to condensation. Coagulation decreases he total particle number density at a rate which is highly correlated to the instantaneous umber density.

Keywords

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-06
  • Acceptance Date2012-09-12

DOI Reference

10.2298/TSCI1205492Z

References

  1. Yu, M. Z., Lin, J. Z., Binary Homogeneous Nucleation and Growth of Water-sulfuric Acid Nanoparticles Using a TEMOM Model, International Journal of Heat and Mass Transfer, 53 (2010), 4, pp. 635- 644
  2. Brock, J. R., Kuhn, P. J., Zehavi, D., Condensation Aerosol Formation and Growth in a Laminar Coaxial Jet, Journal of Aerosol Science, 17 (1986), 1, pp. 11-22
  3. Yu, M. Z., Lin, J. Z., Solution of the Agglomerate Brownian Coagulation Using Taylor-Expansion Moment Method, Journal of Colloid and Interface Science, 336 (2009), 1, pp. 142-149
  4. Wang, Y. M., Lin, J. Z., The Oblique Collision Efficiency of Nanoparticles at Different Angles in Brownian Coagulation, Computers and Mathematics with Applications, 61 (2001), 8, pp. 1917-1922
  5. Lin, J. Z., Lin, P. F., Chen, H. J., Research on the Transport and Deposition of Nanoparticles in a Rotating Curved Pipe, Physics of fluids, 21 (2009), 12, pp. 1-11
  6. Lesniewski, T. K., Friedlander, S. K., Particle Nucleation and Growth in a Free Turbulent Jet, Proceedings of the Royal Society of London, Series A, 454 (1998), 1977, pp. 2477-2504
  7. Garmory, A., Mastorakos, E., Aerosol Nucleation and Growth in a Turbulent Jet Using the Stochastic Fields Method, Chemical Engineering Science, 63 (2008), 16, pp. 4079-4089
  8. Zhou, K., Chan, T. L., Simulation of Homogeneous Particle Nucleation in a Free Turbulent Jet, Aerosol Science and Technology, 45 (2011), 8, pp. 973-987
  9. Zhou, K., Attili, A., Bisetti, F., Direct Numerical Simulation of Aerosol Growth Processes in a Turbulent Mixing Layer, in: Seventh International Conference on Computational Fluid Dynamics (ICCFD7), Big Island, Hi, USA, 2012
  10. Yu, M. Z., Lin, J. Z., Chan, T. L., A New Moment Method for Solving the Coagulation Equation for Particles in Brownian Motion, Aerosol Science and Technology, 42 (2008), 9, pp. 705-713
  11. Yu, M. Z., Lin, J. Z., Taylor-Expansion Moment Method for Agglomerate Coagulation due to Brownian Motion in the Entire Size Regime, Journal of Aerosol Science, 40 (2009), 6, pp. 549-562
  12. Marchisio, D. L., Fox, R. O., Solution of Population Balance Equations Using the Direct Quadrature Method of Moments, Journal of Aerosol Science, 36 (2005), 1, pp. 43-73
  13. Lin, J. Z., Liu, Y. H., Nanoparticle Nucleation and Coagulation in a Mixing Layer, Acta Mechanica Sinica, 26 (2010), 4, pp. 521-529
  14. Friedlander, S. K., Smoke, Dust, and Haze: Fundamentals of Aerosol Dynamics, 2nd ed., Oxford University Press, NY, USA, 2000
Volume 16, Issue 5, Pages1492 -1496