Air Flow Bench
The air flow bench is much like wind tunnel although it is smaller in size
when compared with the wind tunnel, and it's physical representation and
orientation is totally different than that of wind tunnel.  Airflow bench
is very simple in outlook yet very sophisticated machine.  It provides the
experimenter with controlled stream of air for experimentation and for
analysis.  The air is drawn from the atmosphere is delivered through a
pipe to the air box.  The pipe is controlled with a valve, which controls
the air discharged by the fan.  From the air box, the air is distributed
through the Pitot tube.