What's the phenomenon that a ping-pong ball won't fall when a funnel blows

What's the phenomenon that a ping-pong ball won't fall when a funnel blows

This phenomenon reflects the relationship between the flow velocity and pressure of the fluid. When people blow the ping-pong ball down with a funnel, the ping-pong ball will not fall. This is because the air velocity above the ping-pong ball is large and the pressure is small, while the air velocity below the ping-pong ball is on the contrary. The air velocity is small and the pressure is strong, so the upward pressure is generated above and below the ping-pong ball to hold it

Why can't a table tennis ball fly when it's blown with a funnel

According to the theory of hydrodynamics, the smaller the pressure inside the funnel, the faster the air flow inside the funnel
Therefore, there is a pressure difference. The upper part of the table tennis ball pressure is small, the lower part is high
It's the same principle that airplanes can fly

Why can't the inverted funnel blow the ping-pong ball?
The funnel is upside down. Put a ping-pong ball under the small hole on the other side of the cone, and then blow hard. While blowing, let go of the ping-pong ball, but the ping-pong ball doesn't fall off. Why? Please tell me why. Remember to answer with physics knowledge~

Blowing makes the air flow speed in the funnel faster, and the pressure is smaller. When the pressure in the funnel becomes smaller, the pressure outside becomes larger, forming a pressure difference. The upper pressure of the table tennis ball is smaller, and the lower pressure is higher. (just like the atmospheric pressure holds the table tennis ball) so it can't fall down