How we can defined the viscosity of fluid by user defined option.

Mudassir khan

Dear experts 

I am working on modelling of Hershel bulkley fluid (or genralised bingham). I want define my fluid viscosity as per my experimental data. I have viscosity vs shear rate data but I can not find proper option to use fit my data. I think it may be userdefined but there is no option in viscosity tab of material model. further there are 9 species in drop down list of curve fit variable of viscosity tab. Can I use any species option to define my viscosity vs shear rate data. 

Payal Pawar_20288

Hi

Please let me know what Altair product you are using so that I can direct your question to the proper forum.

Mudassir khan

Hey Payal 

Thanks for your prompt reply. I am using HyperWorks CFD 2022.1 for dam break transient simulation. I have my experimental data on viscosity vs shear rate. how can I define my fluid using this data?

acupro

Here is the page for the available Viscosity Models and their parameters.

https://2022.help.altair.com/2022.2/hwcfdsolvers/acusolve/topics/acusolve/viscosity_model_acusolve_com_ref.htm