This paper studies the effect of the eccentricity between the inner bob and theouter cup in a coaxial viscometer on the measurements of the viscosity., by. .using aperturbation scheme, Our numerical examples demonstra...This paper studies the effect of the eccentricity between the inner bob and theouter cup in a coaxial viscometer on the measurements of the viscosity., by. .using aperturbation scheme, Our numerical examples demonstrate that the error incurred bythe eccentricity would become larger as the characteristic Reynolds number decreasesor as the gap width between the`.bob and the cup gets narrower. However, such errorsmay not be signifcant if the eccentric distance`is not larger than 110 of the gapwidth.for the usual working range of a coaxial viscometer.展开更多
文摘This paper studies the effect of the eccentricity between the inner bob and theouter cup in a coaxial viscometer on the measurements of the viscosity., by. .using aperturbation scheme, Our numerical examples demonstrate that the error incurred bythe eccentricity would become larger as the characteristic Reynolds number decreasesor as the gap width between the`.bob and the cup gets narrower. However, such errorsmay not be signifcant if the eccentric distance`is not larger than 110 of the gapwidth.for the usual working range of a coaxial viscometer.
