Honey Preset doesn't work for very dense Meshes

[themaxxer]

Hello there

I have a Problem wich i would like to be solved as soon as possible. I tested the Preset "Honey" in PhoenixFD 3.14. For Low Simulations it works perfect. I mean the swirling and folding of the viscous Fluid where it hits a Surface. When i raise the Steps per Frame it Looks like on the Image attached. Beleive me itested everything. Changed almost every Value, the Distance to the Floor, etc. Can you please help me finding a Solution for High Fluid Simulations, i mean very dense Meshes. On the Image you can see what i mean. There is no swirling or folding. It Looks like weird. I got this Problem everytime in every Scene. At least when i would like to simulate the Final Simulation.

[Svetlin.Nikolov]

As you increase the resolution, you tell the simulation to create much more particles. Now each honey particle has to interact with much more other honey particles in order to produce the same shape as with a low resolution. You need to increase your viscosity strength when changing the resolution.

Cheers!

[themaxxer]

Thank you for your quick answer. It seems to work. Until now i haven't changed the viscosity strength to solve this issue, i never thought this could bee the Solution, because it changes the Behaviour of the Fluid. But this changes the Behaviour of the Fluid, it's getting more viscous. How can i stay with the same viscosity as before? Do i Need to Change the Non Newtonian Parameter to get the same Look as with lower Sims? Do you know what i mean?

Cheers

[Svetlin.Nikolov]

The viscosity strength parameter is affected by the resolution. You can think of it as the strength of the force between two particles - when you increase the resolution twice, one additional particle goes between the first two, and it requires more strength to keep them together. I don't think you need to change the non-Newtonian parameter, but you might need to increase surface tension if you use it too.