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Sag equation for coatings on rotating substrates
Author(s) -
Frisch H. L.,
Scopazzi C.
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070430605
Subject(s) - newtonian fluid , flow (mathematics) , mechanics , physics , classical mechanics , materials science
We develop the sag length equation for coatings on rotating substrates, neglecting Coriolis force effects. The equation is integrated analytically for both Newtonian and some cases of non‐Newtonian flow. For rotating substrates, the sag in one direction is compensated for by sag in the opposite direction, and unlike the nonrotating case, the sag is not proportional to time.