UDF for Non-Newtonian power law fluids

Iman Sengupta · July 1, 2015, 02:39

I am working with CFD simulation of hydrocyclone. I want to incorporate non-Newtonian power law fluids. I used implicit VOF as multiphase flow model and RSM as turbulence model. For pressure I have used PRESTO and for momentum I have used QUICK. I have used SIMPLE to solve the problem. Is there any UDF for non-Newtonian power law fluids? Please help me.

meangreen · July 14, 2015, 16:20

Hi Iman - yes, you can make a UDF for a powerlaw fluid. You need to write the udf and then "hook" it into the viscosity (of the material). if you list the equation you want people can be of more help.

July 1, 2015, 02:39	UDF for Non-Newtonian power law fluids	#1
Iman Sengupta New Member Iman Sengupta Join Date: May 2015 Location: India Posts: 14 Rep Power: 11	I am working with CFD simulation of hydrocyclone. I want to incorporate non-Newtonian power law fluids. I used implicit VOF as multiphase flow model and RSM as turbulence model. For pressure I have used PRESTO and for momentum I have used QUICK. I have used SIMPLE to solve the problem. Is there any UDF for non-Newtonian power law fluids? Please help me.

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July 14, 2015, 16:20		#2
meangreen Member Casey Join Date: Jun 2009 Posts: 98 Rep Power: 17	Hi Iman - yes, you can make a UDF for a powerlaw fluid. You need to write the udf and then "hook" it into the viscosity (of the material). if you list the equation you want people can be of more help.