Non-Newtonian fluids and boundary conditions

edited November 2017 in DualSPHysics_v4.0
Greetings!
Thank you for your attention!
I'm using this software to do some simulations of non-Newtonian.But there some question.
1.Is it necessary to create two liquids to use non-Newtonian fluid model? How to establish a non-Newtonian fluid model?
2.A very important issue is that there is no friction between non-Newtonian fluid and the boundary conditions. How to change the friction between the fluid and the boundary conditions the size.(Very important!)
Looking forward to your reply!

Comments

  • Hi,

    1) if you know what your non-Newtonian model is you should have its characteristics like yield stress, (and if it is Birmingham /shear think-thickening etc ) you just need to add these in the xml, actually you could have 2 non-Newtonian fluids or two Newtonian that is up to you and how you set up your parameters. if in doubt pm/email me

    2)That might be a bug by the sound of it, but, I remember had a look on the no-slip between the wall and the NN phase.
    We also did some tests for a very well known case and the results came back ok,

    What are you trying to simulate? pm/email me please but we are very busy at this point so it might be a few days before you get an answer,

    Thank you
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!