Representation of generally mixed multivariate aerosols by the quadrature method of moments: II. Aerosol dynamics
In: Journal of Aerosol Science, Jg. 35 (2004-05-01), Heft 5, S. 577-598
Online
academicJournal
Zugriff:
The quadrature method of moments (QMOM) is extended to generally mixed multicomponent particle populations using principal component analysis (PCA). The resulting PCA-QMOM provides a versatile method for moment closure illustrated for generally mixed, multivariate, particle populations evolving under condensation, coagulation, sintering, and simultaneous processes. The method is illustrated using a 2h -point quadrature version of the PCA-QMOM, where h is the number of coordinate dimensions, developed in the preceding paper (Paper I). Calculations for multiple particle populations interacting through coagulation are also presented. A theory is developed for the time-dependence of the covariance matrix of a multicomponent particle population evolving under a size-independent coagulation rate. It is found that the rank of the h×h covariance matrix, for h components, approaches unity at long time as the particle population evolves to an internally mixed, self-preserving size distribution state. [Copyright &y& Elsevier]
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Representation of generally mixed multivariate aerosols by the quadrature method of moments: II. Aerosol dynamics
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Autor/in / Beteiligte Person: | Yoon, Choongseok ; McGraw, Robert |
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Zeitschrift: | Journal of Aerosol Science, Jg. 35 (2004-05-01), Heft 5, S. 577-598 |
Veröffentlichung: | 2004 |
Medientyp: | academicJournal |
ISSN: | 0021-8502 (print) |
DOI: | 10.1016/j.jaerosci.2003.11.012 |
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