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Forum: Main CFD Forum

October 25, 2013, 04:08

Replies: 5

Shear Strain Rate

Views: 8,504

Posted By Dave442

Hi cfd_begin, In all of the continuum...

Hi cfd_begin,

In all of the continuum mechanics books that I have read, the rate of deformation tensor is defined as 0.5*(delUi/delXj+delUj/delXi).

I'm sure that there is probably a very good...

Forum: Main CFD Forum

October 24, 2013, 10:20

Replies: 5

Shear Strain Rate

Views: 8,504

Posted By Dave442

Hi cfd_begin, I understand that...

Hi cfd_begin,

I understand that [2*(delUi/delXj : Dij)]^0.5 = [2*(Dij : Dij)]^0.5.

My problem was the definitions of the scalar shear strain rate in ANSYS CFX and ANSYS Fluent are slightly...

Forum: Main CFD Forum

August 1, 2012, 07:29

Replies: 5

Shear Strain Rate

Views: 8,504

Posted By Dave442

So I think I may have figured this out. The...

So I think I may have figured this out.

The rate of deformation (or strain rate) tensor is typically defined as follows:

Dij=0.5*(delUi/delXj+delUj/delXi)

In the Ansys Fluent theory manual...

Forum: Main CFD Forum

July 31, 2012, 10:06

Replies: 5

Shear Strain Rate

Views: 8,504

Posted By Dave442

Shear Strain Rate

Hi all,

I have been reading about non-Newtonian fluids recently and I have a question about the scalar shear strain rate. In the Ansys CFX theory manual, the scalar shear strain rate is defined as...

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