nu0 parameter of Herschel Bulkley viscosity model

liliana · December 4, 2020, 08:37

Dear all,

I am trying to use the Herschel Bulkley viscosity model in a flow between plates, very simple.

However, I am not getting how should I set a value for "nu0" in transportProperties files.

I understood that it should be a high value in order to represent a high viscosity at very low shear rates. However, when I change this value, the velocity profile algo changes.

Does anyone know a way to estimate this parameter? Thanks!

mostanad · July 30, 2021, 00:04

Hi liliana,
Did you find any solution for this problem?

December 4, 2020, 08:37	nu0 parameter of Herschel Bulkley viscosity model	#1
liliana Member Liliana de Luca Xavier Augusto Join Date: Feb 2013 Posts: 69 Rep Power: 13	Dear all, I am trying to use the Herschel Bulkley viscosity model in a flow between plates, very simple. However, I am not getting how should I set a value for "nu0" in transportProperties files. I understood that it should be a high value in order to represent a high viscosity at very low shear rates. However, when I change this value, the velocity profile algo changes. Does anyone know a way to estimate this parameter? Thanks!

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July 30, 2021, 00:04		#2
mostanad Senior Member mohammad Join Date: Sep 2015 Posts: 281 Rep Power: 12	Hi liliana, Did you find any solution for this problem?