LagrangianParticleTracker manually define flow density and dynamic viscosity

Hey Mathieu,

No problem, thanks for solving the issue! I will mark this as solved as I have managed to get LPT working and generate particles tracks and particle interactions. I want to get a basic working model with the Matida model and focus on a custom model for my problem.

Unfortunately, due to my implementation or the implementation of the LPT surface, it reflects particles along the same trajectory at which it hit the surface. This could be due to negative flow/negative particle trajectory at an angle which the LPT is not accustom to. Regardless, I will try simpler microchannel curves and work towards solving this large spiral. If all else fails, I will open a new topic in the near future once I have a simplified version as it is a new, separate issue.

Many thanks,
Matthew.

Below are images of a single particle bouncing with the same trajectory. Images were simulated using the LPT package, 20 micrometre particle size, 1.055 kg/m3 particle density, 0.147 m/s bulk flow rate, 998 kg/m3 flow density and 0.001 mPa/s flow dynamic viscosity. The first image is from time step 500 and the final image is step 1.