Simulating 3D Water Droplet in Powder Bed

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Hi,

I hope you're doing well.

I'm currently working on a project using COMSOL Multiphysics, and I'm still quite new to the software. The title of my project is:

"Optimizing the Binder Jetting Process by Simulating the Penetration Behavior of Binder in a Powder Bed."

I'm trying to simulate a 3D water droplet falling onto a powder bed, and while I've successfully designed the powder bed part of the model, I'm struggling with the setup for the water droplet. Specifically, I’m not sure how to model the droplet and make it interact properly with the powder bed using the appropriate physics.

I came across a couple of YouTube videos that show similar simulations:

https://www.youtube.com/watch?v=60cATi0LKng

https://www.youtube.com/watch?v=u8GMDY5EEmE

These were helpful for visual understanding, but they don’t provide the full setup details. I’ve tried several approaches but haven’t been able to get reliable results.

Could you please guide me through how to model the 3D water droplet and set up its interaction with the powder bed? Your support would really mean a lot to me, and it’s very important for the success of my project.


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