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With “Conserve Volume” set to “Yes”, the solver will try to conserve the volume. Please bear in mind that this method has its limit and when the loss of volume is considerable (approx. 50% or more) then it is very difficult to recover the original volume. On the other hand, you might notice an increase of volume in some situations. As a rule of thumb, we can say that “Conserve Volume” works best when the loss of volume is not higher than 10-20% per second. In cases where the loss is higher it is likely that you will see artefacts. This problem can be addressed with a more restricted time step (= higher “MIN substeps” value of the “Hybrido Main Solver”).
You can read more about the influence of time steps and the interaction between objects and fluids here.
Vorticity boost
To get a more turbulent fluid, it is possible to increase the particles' spin with this factor. Please try to avoid very high values (unless necessary), because they can completely distort the fluid. "Vorticity boost" is an implementation of the better-known "Vorticity Confinement" technique which can often be found in smoke simulation tools. This value accepts floats and is dimensionless. In many cases, values between 0.0 and 2.0 produce satisfying results. Please bear in mind that "Vorticity boost" is very sensitive.
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