Can Artificial Viscosity model real viscosity?
In some papers they argue that based on a paper Monaghan has written it is possible for a 2D Wendland kernel to say that:
Which means that one can turn alpha into a fixed parameter based on a physical value instead of a free-parameter!
I notice though that this is not included in DualSPHysics wiki, which makes me think that this kind of manevour is not actually okay. Would any of the developers or more knowledgeable people about the theory please explain why/why not, this is okay to do?
It would be a great help for me atleast, but also others at large.
Monaghan's work on it can be found here:
Chapter 8.1, specifically equation 8.8