Bubble curtains used as barriers across horizontal density stratifications

Bubble curtains are multiphase line plumes that used to reduce buoyancy-driven flows between two water zones at different densities. They similar air curtains, plane turbulent jets, installed in doorways of buildings climatically environments. In this study, we establish a formal analogy bubble and unify the frameworks for their description had previously been used. By means small-scale laboratory experiments conducted channel with freshwater brine solutions, study how effectively curtain acts as separation barrier wide range density differences well fluxes depths. Qualitatively, regimes operation identified optimum operating conditions on basis quantitative measurements theoretical considerations. We develop model calculate infiltration flux dense across is very good agreement experimental yields upper limit effectiveness curtain. also mixed fluid around curtain, provide scaling law horizontal extent theoretically predict inside these zones. discuss models derived from our apply real-scale are, example, ship locks.