Reply To: Does Guo’s second-order external force term really change viscosity?
Dear aaron,
thank you for your post.
I am not sure, if I understand this correctly.
From my point of view, there is no change in viscosity whatsoever due a specific forcing method.
This happens only, if you formulate the force to actually do this.
But that’s a matter of the force itself, and not of the method you use for forcing.
Please have a look in the Krüger et al. 2017 book.
There is a specific chapter that compares all the forcing schemes and explains the effects they have.
BR
Stephan