@alex2lib The fluid velocity field is used when moving the particles, so they should be following the flow. We are using the Euler scheme though, and are not doing any velocity interpolation between nodes, so this can introduce some errors.
The eddy flow is made possible thanks to the use of the MRT model, which can support flows with very low viscosity (I'm not sure how much physically correct they are, though...) I don't remember the exact lattice size, but I'm pretty sure it wasn't higher than 512x512.
hi,
I was wondering a couple of things if you could answer me:
1) What Reynolds is that simulation at?
2) What are both the spatial spacing and time step size?
Thanks a lot beforehand.
parri79 1 year ago
and the particles? seems like they do not follow the flow. is it true?
alex2lib 1 year ago
@alex2lib The fluid velocity field is used when moving the particles, so they should be following the flow. We are using the Euler scheme though, and are not doing any velocity interpolation between nodes, so this can introduce some errors.
ytmjanusz 1 year ago
The eddy flow is made possible thanks to the use of the MRT model, which can support flows with very low viscosity (I'm not sure how much physically correct they are, though...) I don't remember the exact lattice size, but I'm pretty sure it wasn't higher than 512x512.
ytmjanusz 1 year ago
Is the eddy flow made possible simply using a large enough lattice to support the high Reynolds number or is there some LES trickery involved?
janne808 1 year ago