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 eynolds number in a dilute planar contraction. The model mainly accounts for he 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

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-06
  • Acceptance Date2012-09-12

DOI Reference

10.2298/TSCI1205367Y

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