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Two-stream Maxwellian kinetic theory of cloud droplet growth by condensationA new growth rate formula (NGRF) is developed for the rate of growth of cloud droplets by condensation. The theory used is a modification of the Lees-Shankar theory in which the two-stream Maxwellian distribution function of Lees is used in Maxwell's method of moments to determine the transport of water vapor to and heat away from the droplet. Boundary conditions at the droplet are the usual conditions set in terms of accommodation coefficients, and the solution passes smoothly into diffusion flow in the far region. Comparisons are given between NGRF and the conventional formula showing close agreement (approximately 0.1%) for large radii with significant difference (approximately 5%) for small radii (not greater than 1 micron). Growth times for haze droplets in a Laktionov chamber are computed.
Document ID
19810059485
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Robinson, N. F.
(Desert Research Inst. Reno, NV, United States)
Scott, W. T.
(Nevada, University Desert Research Institute, Reno, NV, United States)
Date Acquired
August 11, 2013
Publication Date
May 1, 1981
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 38
Subject Category
Meteorology And Climatology
Accession Number
81A43889
Funding Number(s)
CONTRACT_GRANT: NAS8-32975
Distribution Limits
Public
Copyright
Other

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