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Laminar dispersion of polymer solutions in helical coils
Author(s) -
Singh Diwakar,
Nigam K. D. P.
Publication year - 1981
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.1981.070260304
Subject(s) - laminar flow , dispersion (optics) , plug flow , materials science , tube (container) , newtonian fluid , mechanics , non newtonian fluid , polymer , flow (mathematics) , power law , spark plug , composite material , thermodynamics , physics , optics , mathematics , statistics
In the present study the step response experiments were carried out with power law fluids in two helical coils to examine the suitability of axial dispersed plug flow model in describing the laminar dispersion of non‐Newtonian fluids in helical coils. The ranges of variables covered are 10 ≤ λ ≤ 100,0.01 ≤ N Regen ≤ 2.5,0.001 ≤ N De ≤ 0.77 and 0.035 ≤ τ ≤ 1.33. It is found that coiling results in reduced dispersion to that in a straight tube.