@Article{cmes.2010.061.201,
AUTHOR = {Hui-Fen  Guo, Bin-Gang  Xu},
TITLE = {A 3D Numerical Model for a Flexible Fiber Motion in Compressible Swirling Airflow},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {61},
YEAR = {2010},
NUMBER = {3},
PAGES = {201--222},
URL = {http://www.techscience.com/CMES/v61n3/25526},
ISSN = {1526-1506},
ABSTRACT = {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.},
DOI = {10.3970/cmes.2010.061.201}
}