Onsets of liquid and gas entrainment during discharge from a stratified air-water region through two horizontal side branches with centerlines falling in an inclined plane

Abstract

Experimental investigations of single-branch discharge have been conducted. These investigations have examined the onsets of gas and liquid entrainment for branch orientations of bottom, side, and top. As well, theoretical investigations of the onset of liquid entrainment for single and dual side-oriented branches have also been performed. These investigations have treated the branch or branches as point sinks or circular geometry with a finite diameter. Further, for the case of dual-branch discharge, experimental studies into the onsets of gas and liquid entrainment have been performed for two side-oriented branches with centerlines falling in a vertical plane only. An experimental study was conducted on the onsets of gas and liquid entrainment for dual, horizontal discharge from two, 6.35 mm diameter branches with centerlines falling in an inclined plane located on the side of a large pressure vessel that contained a stratified two-phase air-water mixture. The onset of liquid entrainment was analyzed theoretically for dual discharge through two side-oriented square branches of finite dimension d with centerlines falling in an inclined plane; these branches discharge from a large reservoir containing a stratified mixture of two immiscible fluids. (Abstract shortened by UMI.)