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Convective‐Diffusive Mass Transport in Elongated Filaments and Membranes
Author(s) -
Brod Helmut
Publication year - 1998
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199812)21:12<937::aid-ceat937>3.0.co;2-p
Subject(s) - convection , polymer , mechanics , mass transport , spinning , flow (mathematics) , diffusion , steady state (chemistry) , mass transfer , membrane , materials science , chemistry , thermodynamics , composite material , physics , engineering physics , biochemistry
In several polymer production and processing technologies diffusive mass transport with convection due to elongational flow is encountered. Examples of such processes are film‐blowing, fibre‐spinning and polymer strand devolatilization. The classes of problems considered in this paper are steady‐state and – closely related to them – unsteady‐state convection‐diffusion problems with elongational flow. The question treated is as to what influence the type and strength of the elongational flow have on the convective‐diffusive mass transport inside the polymer phase.