tank being supplied by the resulting flow. The water tank ~11! wasfed by the auxiliary tank ~13! to avoid turbulence problems in the suction. The auxiliary pump supplied this tank ~13! as well as the feeding tank. The delivery water tank returned to the reservoir of the auxiliary pump through an overflow pipe. The exit pipeline
from the pump ~1! was of 50 mm diameter, which was also the size of the feeding, suction, and discharge pipes, as well as of the needle and globe valves and the tees used for the construction of
the ejectors. The total length of the pipelines varied in accordance with the length Le of each ejector.