THERMAL SCIENCE

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Wei Yang

A NEW METHOD FOR FIBER ORIENTATION DISTRIBUTION IN A PLANAR CONTRACTING TURBULENT FLOW

ABSTRACT
A new Euler model is proposed to predict fiber orientation distribution at high Reynolds number in a dilute planar contraction. The model mainly accounts for the evolution of mean velocity and turbulence-induced rotational diffusion coefficient along the contraction. It is shown that the new model, as the function of local turbulent dissipation rate, fiber length, and fluid viscosity, can reflect the subtle change of fiber orientation accurately.
KEYWORDS
rotational diffusion, fiber orientation, planar contraction, dilute turbulence
PAPER SUBMITTED: 2012-08-01
PAPER REVISED: 2012-09-06
PAPER ACCEPTED: 2012-09-12
DOI REFERENCE: https://doi.org/10.2298/TSCI1205367Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Issue 5, PAGES [1367 - 1371]
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A new method for fiber orientation distribution in a planar contracting turbulent flow

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