I spent part of the Easter weekend playing with Paraview 5.10.1, trying to improve result rendering for a typical hydraulic problem, to make them easier to digest by less technically inclined customers. So I grabbed an old case CFD of a submerged hydraulic jump solved with LES, and let it run for a few hours.
In this video, I’ve compiled a few of the rendering attempts I made. I’m not satisfied yet, so I’ll probably try a bit more when I have some free time again.
Particles were solved using a custom version of the icoUncoupledKinematicCloud function object from OpenFOAM. It was necessary to modify the code, as the default version doesn’t work with multiphasic simulations.
Particle streaks were computed on Paraview using the StreamTracerWithCustomSource filter. These have the limitation of having a fixed length, independent of the particle speed. In my next attempt, I’ll probably try generating those streaks offline with a python program from past particle positions, which I think will probably look and perform better.