Table of Content

Open AccessOpen Access


A 3D Numerical Model for a Flexible Fiber Motion in Compressible Swirling Airflow

Hui-Fen Guo1,2, Bin-Gang Xu1,3

Institute of Textiles and Clothing, the Hong Kong Polytechnic University, Kowloon, Hong Kong
College of Textile, Donghua University, Shanghai 201620, China
Corresponding author, E-mail:

Computer Modeling in Engineering & Sciences 2010, 61(3), 201-222.


A numerical method is developed for modeling the dynamics of a flexible fiber immersed in a compressible swirling flow. The modeling approach is based on combining an Eulerian finite volume formulation for the fluid flow and a Lagrangian small-deformation formulation for the dynamics of the fiber. The fiber is modeled as a chain of beads connected through mass-less rods. The bending and twisting deformation of the fiber are represented by the displacements of the successive beads. A computational strategy is proposed for the computation of the fluid parameters at the center of discrete fiber sections. To deal with the fiber-wall interaction, a wall model is also developed. The new algorithm was verified against the experimental observations using high-speed photography. The proposed model has also been applied in a textile process to simulate the fiber motions in the two nozzles (i.e., cylindrical and diverged conical tubes, respectively) of an air-jet spinning machine, and consequently, the principle of the air-jet yarn formation can be demonstrated.


Cite This Article

Guo, H., Xu, B. (2010). A 3D Numerical Model for a Flexible Fiber Motion in Compressible Swirling Airflow. CMES-Computer Modeling in Engineering & Sciences, 61(3), 201–222.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 1062


  • 793


  • 0


Share Link