EVOLUTION OF PARTICLE SIZE DISTRIBUTION IN AIR IN THE RAINFALL PROCESS VIA THE MOMENT METHOD

Abstract

Population balance equation is converted to three moment equations to describe he dynamical behavior of particle size distribution in air in the rainfall. The scavenging oefficient is expressed as a polynomial function of the particle diameter, he raindrop diameter and the raindrop velocity. The evolutions of particle size istribution are simulated numerically and the effects of the raindrop size distribution n particle size distribution are studied. The results show that the raindrops ith smaller geometric mean diameter and geometric standard deviation of ize remove particles much more efficiently. The particles which fall in the greenfield gap" are the most difficult to be scavenged from the air.

Keywords

Dates

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

DOI Reference

10.2298/TSCI1205372G

References

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