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An analysis of the air-jet yarn texturing process. Part 4, Fluid forces acting on the filaments and the effects of filament cross-sectional area and shape

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posted on 2015-11-10, 13:34 authored by Memis Acar, R.K. Turton, Gordon R. Wray
Fluid (drag) forces acting on filaments in an air-flow are theoretically analysed, and equations to calculate them are derived. Drag forces acting on filaments are shown to vary with the filament cross-section, the position of the filaments across the nozzle, and the local air velocity. Since finer filaments have a smaller inertial resistance to fluid forces and have lower stiffness, yarns with finer filaments are shown to be more suitable for air-jet texturing. Theoretical modelling of a lament as it emerges from the nozzle shows that, for filaments with identical linear densities, those with cross sections having reduced bending and torsional stiffness, such as elhpt1c cross-sections, may be more suitable for air-jet texturing.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

JOURNAL OF THE TEXTILE INSTITUTE

Volume

77

Issue

4

Pages

247 - 254 (8)

Citation

ACAR, M., TURTON, R.K. and WRAY, G.R., 1986. An analysis of the air-jet yarn texturing process. Part 4, Fluid forces acting on the filaments and the effects of filament cross-sectional area and shape. Journal of the Textile Institute, 77(4), pp. 247-254.

Publisher

© Textile Institute. Published by Taylor and Francis.

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

1986

Notes

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of the Textile Institute in 1986, available online: http://dx.doi.org/10.1080/00405008608658417

ISSN

0040-5000

Language

  • en

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