User Defines Power Law, Herschel Berkeley and Bingham Plastic Viscosity Models

MFiX
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#1

Hello,

I am trying to change the fluid model from Newtonian with constant viscosity to a Power Law, Herschel Berkeley and Bingham Plastic fluids.
Can someone walk me through the details and provide assistance, I am studying the velocity of particles falling in these fluids and compare to lab experiments.
Thanks!

#2

Hi Foued. Have you made any progress with this problem? You may get better replies here if you ask a more specific question - what have you tried, what problems have you come across, etc. And include your .mfx file and any UDF code.

#3

Hello, foued. I wanna ask for you if you have solved this problem, because now I want to change constant viscosity with Power-law viscosity model. We can have a discussion about it.

#4

Hello,cgw. Now I want to change constant viscosity with Power-law viscosity model. Can you give me some advice?

#5

Unfortunately no but I want to look at it again. We can have a discussion if you want and see how to proceed.

#6

Now I wanna put constitutive equation of power-law fluid into USR_PROP_Mug in usr-properties.f, but unfortunately it didn’t work. So I wanna know if you are able to change some codes to ensure it can work.

#7

Hi cgw, I want to use Herschel-Bulkley or Bingham model for liquid-solid flow in a straight pipe. I checked the user manual but found no clues in it. Since I am a green hand to Mfix, is it possible for you to give a hand so that I can write UDF code for simulation. Thanks!