Experimental Mechanics

, Volume 22, Issue 1, pp 37–38 | Cite as

On a nonlinearity in flow birefringence

This note presents a general optical relation for three-dimensional birefringent fluids which explains observed cross effects and gives a meaning to isoclinics
  • James F. Doyle


The nonlinearity observed in the flow-birefringent data can be explained by considering a properly formulated constitutiv relation, and is seen to be a natural consequence of the representation of a tensor function. The optical relation proposed is valid for a general threedimensional flow and, in addition, gives a meaning to the isoclinics in terms of the strain-rate components.


Mechanical Engineer Fluid Dynamics Constitutiv Relation Natural Consequence Threedimensional Flow 
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Copyright information

© Society for Experimental Mechanics, Inc. 1982

Authors and Affiliations

  • James F. Doyle
    • 1
  1. 1.School of Aeronautics and AstronauticsPurdue UniversityWest Lafayette

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