Bernoulli air-blower ball

What you are seeing: a light ball held up by a turbulent air jet. The ball settles where the upward quadratic drag balances gravity. It also self-centres: nudge it sideways and the side nearer the fast jet core gets more drag and pushes it back, the everyday Bernoulli / entrainment effect. Drag the ball and let go, tilt the blower, or cut the power.

Figure 1. A sphere levitated in a turbulent free jet. Method: quadratic sphere drag in a Gaussian-spreading jet with centreline decay.

blower power18

tilt (deg)0

WHAT TO TRY

Vary each control and watch the rail readouts respond.
Compare the diagnostic plot against the live scene.