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Hi! I am trying to build a horizontal 2D simulation, but it seems that DesignSPHysics 2D setup is always vertical and I suppose it applies to DualSPHysics as well. I figured I can't just set gravity to 0, but got ahead by the CaseForces example, adding an equal and opposite force.
However, something strange happens. It seems that most particles on the top edge disappear after a few timesteps, and an area of less dense fluid starts developing in the center.
I'd be interested in any insights on why this might happen, and how I could mitigate the issue! Eventually I want a model where matter could be at least mostly stationary in the absence of forces. Here's a video: