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CEL Variable "sstrnr"

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Old   April 3, 2006, 01:26
Default CEL Variable "sstrnr"
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Hi friends,

I am trying to calculate effective shear strain-rate (€bar) for a non-newtonian flow from shear strain-rate (&euro variable of CFX; "sstrnr". The relaton is ;

€bar = sqrt(2/3 €ij €ij) , ij are indexes

However i dont know what "sstrnr" gives? A vector or a matrix? Can anyone help me


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Old   April 3, 2006, 05:49
Default Re: CEL Variable "sstrnr"
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The variable sstrnr is simply a scalar (modulus) representation of the shear strain rate tensor. If you want to calculate a quantity based on the tensor components, you'll need to extract velocity gradients via User Fortran in CFX.

A description of the tensor and the sstrnr scalar is in the documentation.


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