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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 66
Edited by: B.H.V. Topping
Paper XI.5

Three Dimensional Analysis of Air Flow in a Curved Converging Channel

L.X. Kong+ and R.A. Platfoot#

+School of Engineering and Technology, Deakin University, Geelong, Victoria, Australia
#Covaris Pty Ltd., North Sydney, NSW, Australia

Full Bibliographic Reference for this paper
L.X. Kong, R.A. Platfoot, "Three Dimensional Analysis of Air Flow in a Curved Converging Channel", in B.H.V. Topping, (Editor), "Computational Mechanics: Techniques and Developments", Civil-Comp Press, Edinburgh, UK, pp 303-309, 2000. doi:10.4203/ccp.66.11.5
A three-dimensional model is developed to evaluate the possible effect of secondary flow generated from the bent or curved duct profiles and turbulent flow of high Reynolds number on fibre movement in a bent channel. The fibre configuration may be more complex in a three-dimensional model with the introduction of secondary flow. In the case of the bend flows, which are a natural extension of straight duct flow, experimental and computational investigations have been conducted for laminar flows and for turbulent flows. The Strategies of mesh generation for three-dimensional problems are discussed. The appropriate use of 3-D mesh will not only improve the speed of convergence but also improve computational accuracy particularly for turbulent simulations. The flow characteristic in the transfer-channel of a rotor spinning machine is finally predicted.

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