Where you are: Home pageYear 2008Issue (69) → Article:
AAA     ENG | POL

Mathematical Modelling of Pneumatic Melt Spinning of Isotactic Polypropylene. Part I. Modelling of the Air Jet Dynamics

Research and development

Authors:

  • Zachara Andrzej
    Institute of Fundamental Technological Research, Polish Academy of Science, Warsaw, Poland
  • Lewandowski Zbigniew
    Institute of Textile Engineering and Polymer Materials, University of Bielsko-Biala, Bielsko-Biała, Poland

Download... PDF
Full text

Abstract:

In this series of publications, the process of nonwoven melt blowing of ultra-fine fibers is presented. The process starts in the dual slot die where two converging air jets draw the molten polymer stream. In the present paper (Part I), the air flow field is investigated with the aid of the k – ĺ turbulence model, which is solved numerically. From the results of computations, we have distributions of the air flow parameters along the z – axis, which is also the axis of pneumatic melt spinning. These parameters are the air velocity, temperature and pressure, which will be used in Part II and III to compute the fiber melt blowing dynamics.

Tags: fiber spinning, melt blowing, nonwoven, computational fluid dynamics, turbulence model.

Published in issue no 4 (69) / 2008, pages 17–23.

CONTACT:

FIBRES & TEXTILES
in Eastern Europe
ul. Skłodowskiej-Curie 19/27,
90-570 Łódź, Poland
e-mail: infor@lit.lukasiewicz.gov.pl
ftee@lit.lukasiewicz.gov.pl
Events:

EDITORIAL OFFICE
FIBRES & TEXTILES in Eastern Europe 19/27 M. Skłodowskiej-Curie Str., 90-570 Łódź, Poland e-mail: infor@lit.lukasiewicz.gov.pl; ftee@lit.lukasiewicz.gov.pl

EDITORIAL DEPARTMENT
Editor-in-Chief Dariusz Wawro, Head of Editorial Office Janusz Kazimierczak, Text Editor Geoffrey Large, Assistant Editor Anna WahlProduction Łukasiewicz-ŁIT

facebook