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Journal ArticleDOI

The Steady Slow Motion of a Viscous Fluid through a Tapered Tube

Syoten Oka
- 05 Aug 1964 - 
- Vol. 19, Iss: 8, pp 1481-1484
TLDR
In this article, the steady slow motion of an incompressible viscous fluid through a tapered tube is investigated, and the dependence of the distribution of shear stress on the semi-angle of the cone is examined theoretically.
Abstract
It is the purpose of this paper to investigate the steady slow motion of an incompressible viscous fluid through a tapered tube, and to examine theoretically the dependence of the distribution of shear stress on the semi-angle of the cone. The volume of flow per unit time has also been calculated and a formula corresponding to the Poiseuille's equation has been obtained. In our calculations it is assumed that the velocity of the liquid is so small that the inertia term in the Navier-Stokes equations of motion can be neglected.

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Citations
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Journal ArticleDOI

Pressure drop of polymeric melts in conical converging flow: Experiments and predictions

TL;DR: In this paper, a simple formula for estimating pressure drop of polymeric materials in a converging die with an abrupt change in geometry for many polymer processes was derived based on a power-law fluid model with normal-stress effects incorporated.
Journal ArticleDOI

Fluid dynamics in conically tapered microneedles

TL;DR: The relationship between pressure drop and flow rate through conically tapered needles was experimentally quantified as a function of fluid viscosity and microneedle length, diameter, and cone half-angle as discussed by the authors.
Journal ArticleDOI

The physico-chemical properties of silk fibers and the fiber spinning process

TL;DR: Akai, H., Ultrastructural Morphology of Insects as mentioned in this paper, Tokyo 1976. The author thanks Dr Frantisek Sehnal for valuable advices and comments on the manuscript.
Journal ArticleDOI

Entrance flows of polymeric materials - Pressure drop and flow patterns

TL;DR: Polymeric materials flow at tube entrance, discussing pressure drop and flow birefringent patterns at tapered and sharp entrances as discussed by the authors, and discussing flow patterns at tube entrances.
References
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Journal ArticleDOI

The Steady Two-Dimensional Radial Flow of Viscous Fluid between Two Inclined Plane Walls

TL;DR: In this article, the steady two-dimensional radial flow of viscous fluid between plane walls which either converge or diverge is considered and a general solution is obtained in terms of elliptic functions and the various mathematically possible types of flow are discussed.
Journal ArticleDOI

The Steady Flow of a Viscous Fluid through a Conical Nozzle

TL;DR: In this article, the authors presented a theory of the steady flow of Newtonian liquid through a conical nozzle, where the velocity is given byvr=3A(cos2θ-cos2α)/4r2, where α is the semi-angle of the cone, and A is a constant.