For fine-tuned animation like this - especially when you're having trouble getting the very basic motion working - you're not going to want to go with a 2-way solution, which is going to be difficult to control. If you really need to see interactions between your fluid and the particles, I would suggest doing a starting fluid simulation, then advecting particles through it with the Fluid Force operator, then doing a secondary fluid simulation using the particles as colliders. The particles will be moving with the overall (primary) fluid giving the illusion of 2-way interactions, even though interactions with the secondary fluid sim will only be 1-way.
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Simulating particles & liquid in a cyclone
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