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Condensation caused by mixing
Author(s) -
Petterssen Sverre
Publication year - 1942
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49706829504
Subject(s) - fog , mixing (physics) , condensation , supersaturation , atmospheric sciences , cloud condensation nuclei , meteorology , turbulence , environmental science , splash , materials science , physics , mechanics , thermodynamics , aerosol , quantum mechanics
The rǒle of mixing in the production of fogs and clouds has been the subject of frequent discussions, and many authors contend that turbulent mixing is an important factor in the formation of fog. This result is derived from the well‐known Bezold effect and supported by observations showing that fogs sometime occur together with winds of considerable strength. The writer (1939, 1940, 1941) has maintained that turbulent mixing tends to prevent fogs from forming and dispel existing fogs. The aim of this paper is to evaluate the amounts of condensation caused by mixing under various atmospheric conditions. Throughout it will be assumed that the air contains a sufficient amount of condensation nuclei, with the result that no appreciable supersaturation can be maintained.