Premium
Taylor instability of an evaporating plane interface
Author(s) -
Bankoff S. G.
Publication year - 1961
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690070329
Subject(s) - leidenfrost effect , instability , boiling , heat transfer , plane (geometry) , thermodynamics , heat flux , mechanics , vapor pressure , porous medium , nucleate boiling , boiling point , flux (metallurgy) , materials science , chemistry , porosity , composite material , physics , geometry , mathematics , metallurgy
A new mode of high‐flux heat transfer is proposed, which consists of film boiling from a porous solid plate, the vapor being sucked off through the plate. For horizontal plates the average vapor film thickness is determined by Taylor instability of the vapor‐liquid interface. A theory is presented for predicting the minimum vapor film thickness which takes into account the stabilizing influence of the reactive pressure of the vapor leaving the interface. The predicted heat transfer coefficients are five to ten times greater than observed heat transfer coefficients in film boiling from nonporous surfaces.