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The electrification of fluids in turbulent flow
Author(s) -
Luus R.,
May Z.,
Graydon W. F.
Publication year - 1963
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450410407
Subject(s) - tube (container) , mechanics , conductivity , sign (mathematics) , polar , turbulence , flow (mathematics) , electrification , electric charge , charge (physics) , relaxation (psychology) , contact electrification , electrical resistivity and conductivity , chemistry , materials science , chemical physics , physics , electricity , triboelectric effect , composite material , quantum mechanics , astronomy , mathematical analysis , social psychology , psychology , mathematics
Abstract Solvents of low electrical conductivity which contain polar solutes produce static charges when caused to flow through tubes of various materials. The resulting electrification has been found to be essentially independent of the solvent provided it is of low conductivity in the pure state. The magnitude and the sign of the charge produced are highly dependent on the chemical nature of the polar solute and of the containing tube. Currents resulting from the formation and relaxation of electrical charge were measured at various sites along the tubes. Local charge production was found to be greatest near such irregularities as constrictions in the tube. Tube constrictions resulted in sign reversal of local charge production. Large voltages of opposite sign could be produced on a single tube. Sparks could be drawn between two sections of the same tube a short distance apart. The recent theories dealing with the phenomenon of electrification have been discussed in the light of these findings.