Call number:
ZSP-201-84/6
In:
CRREL Report, 84-6
Description / Table of Contents:
An expression relating aerosol growth to cold environmental conditions was developed. This was accomplished by solving the diffusion equation with the method of Laplace transformation. The series solution was expressed in terms of the dimensionless parameters K (ratio of vapor density over droplet surface to droplet density), ω (ratio of environmental vapor density at time zero to vapor density over droplet surface), and dimensionless time τ (ratio of product of diffusion coefficient D and time t to square of initial radius of condensation nucleus). To take into account the variation of the vapor density over the surface of an acidic condensation nucleus due to the continuous dilution of the droplet, the solution was obtained by assuming various levels of constant vapor concentration. The final expression [R/R sub o - 1 = 2.4917 x 10 to the minus 18th power) exp(0.0737 θ) (P sub RHS/25) x (100-P sub RHS) τ to the 0.9890 powder] can be used to compute the value of R once the values of initial radius R sub o, relative humidity P sub RH, percent of relative humidity at the droplet surface P sub RHS, and environmental temperature θ are given.
Type of Medium:
Series available for loan
Pages:
vi, 28 Seiten
,
Illustrationen
Series Statement:
CRREL Report 84-6
URL:
https://apps.dtic.mil/docs/citations/ADA139907
URL:
https://hdl.handle.net/11681/9283
Language:
English
Note:
CONTENTS
Abstract
Preface
Nomenclature
General background
The problem
Method of solution
Results and discussion
Conclusions
Literature cited
Appendix: Evaluation of rn's in equation 25
Location:
AWI Archive
Branch Library:
AWI Library
