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Viscoelastic flow in fluent ?

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Old   March 1, 2014, 22:59
Default Viscoelastic flow in fluent ?
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Rams Manu
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Hi,

I have been looking at some of the older posts in this forum which mentions that fluent is not capable of modelling visco-elastic fluids.

But, in the fluid properties tab of fluent, there are certain models available to model the viscosity in non-newtonian fluids. Models like - Power law, Carreau model for pseudo-plastics, Cross model, etc are available to specify viscosity as a function of shear rate and temperature.

So, why can't fluent be used to model visco-elastic fluids (say Pseudoplastics or shear thinning fluids) ? The only difference is going to be in viscosity which can be specified through in-built models or UDFs !

In my case, I need to study a two phase flow involving a Newtonian fluid and a shear thinning fluid. Are there any specific reasons why this can't be modelled in fluent ?


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fluent, polyflow, viscoelastic, viscoelasticfluid

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