Collision of a wet and a dry particle using liquid bridge model

Submitted by sjain on Mon, 11/20/2023 - 12:38

This post was inspired by [1].
Since the files posted in [1] seem to have been lost due to some reason, I tried to make a similar test case for two purposes:
1. How to set different initial surface liquid content for particles using the liquid bridge models (washino and easo)?
2. Do the liquid bridge models give reasonable results for collision of two wet particles?

In this case, there are two particles of sizes 200 and 400 microns respectively. Both the particles are set initially to have a surfaceLiquidContent of 0.01 using the "property/global" surfaceLiquidContentInitial. Then the command "run 0" is used to be able to access f_surfaceLiquidContent, f_liquidFlux and f_liquidSource [see Ref. 2-3].
Then the set command is used to set the "property/atom" surfaceLiquidContent for the bigger particle to 0 [4].
The colliding particles are placed 1300 microns apart (centre-to-centre distance) with initial velocities 50000 microns/sec in the +x and -x directions respectively (see the file twoParticlesInput). The particle surfaces interact at time 10 ms (time step 1000). The liquid bridge ruptures at 10.13 ms (time step 1013) and the liquid bridge volume is distributed between the particles.

1. Input Script: twoParticles.txt
2. Particle Data: particlesInput.txt


Shubham Jain