Force Field FLOW - Question

Hallo everyone.

I’ve got maybe simple, maybe stupid question but I can’t find answer.

Force Field -> FLOW. “Convert effector force into air flow velocity”

I’ve found only one more more complex description

“* New effector parameter “flow”, which makes the effector act as surrounding air velocity, so the resulting force is
proportional to the velocity difference of the point and “air velocity”. For example a wind field with flow=1.0 results in
proper non-accelerating wind.”

And… no examples. Maybe somebody encoutered this option as part of someones tutorial? I have no idea why there is 0-10 value range.