0000000000073392

AUTHOR

Jianliang Yang

showing 2 related works from this author

Rapid condensational growth of aerosol particle in air stream — numerical simulation

1998

Fluid Flow and Transfer ProcessesAtmospheric ScienceEnvironmental EngineeringAir streamComputer simulationMechanical EngineeringEnvironmental scienceParticleAtmospheric sciencesPollutionAerosolJournal of Aerosol Science
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RAPID CONDENSATIONAL GROWTH OF PARTICLES IN THE INLET OF PARTICLE SIZING INSTRUMENTS

2000

Abstract Rapid particle growth by the condensation of water vapour resulting from expansion in the inlet of particle sizing instruments such as optical particle counters and impactors was modelled. The corrected Mason diffusion growth equation extended to the application for particles beyond the continuum region has been found suitable. The influence of particle acceleration in the nozzle air flow, modelled with the CFX-FLOW3D program, on the condensation process was considered. The study was focused on a typical inlet nozzle of an optical particle counter with an inner diameter of 0.5 mm and a length of 20 mm, connected by an additional 20 mm long conical nozzle at a flow rate of 28.5 ml s…

Fluid Flow and Transfer ProcessesAtmospheric ScienceEnvironmental Engineeringbusiness.industryChemistryMechanical EngineeringNozzleMechanicsPollutionSizingVolumetric flow rateAerosolPhysics::Fluid DynamicsParticle accelerationOpticsParticle-size distributionParticle sizebusinessParticle counterJournal of Aerosol Science
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