Regimes of bubbling at a submerged orifice

Abstract

Six types of bubbling action in the dynamic regime are distinguished for "inviscid" flow into a deep pool from a single orifice over a chamber of finite capacity: single and double bubbling, with and without delayed release; pairing and double-pairing. These are described for air and water, and state diagrams are presented for 3 6, 1 4 and 1 8 in. orifices, showing the combination of gas flow rate and chamber capacity necessary to generate each type of bubbling. © 1971.