Impact Factor

– Amount of fluid volume correction for gain/loss from impacting with moving objects.
– If the obobstacle is not moving, this setting has no effect.
– Values smaller than 1 take volume of Fluid away from the Domain.
– Values greater than 1 add volume of Fluid to the Domain.

– In this example the container was set as an Obstacle, see how the volume of the fluid changes while the Obstalce is moving:

Blender Fluid Impact Factor