Breakup of the Water Sheet Formed by Two Liquid Impinging Jets. (3rd February 2019)

• Record Type: Journal Article
• Authors: Xia, Yakang; Khezzar, Lyes; Bojanampati, Shrinivas; Molki, Arman
• Other Names: Feke Donald L. Academic Editor.
• Is Part Of: International journal of chemical engineering. Volume 2019(2019)
• Publication Date: 2019-02-03
• Subjects: Chemical engineering -- Periodicals; Chemical engineering; Electronic journals; Periodicals; 660
• DOI: 10.1155/2019/9514848
• Languages: English
• ISSNs: 1687-806X

Abstract

Abstract : Flow visualization experiments are carried out to study the flow regimes and breakup length of the water sheet generated by two impinging liquid jets from an atomizer made of two identical tubes 0.686 mm in diameter. These experiments cover liquid jet Reynolds numbers based on the pipe diameter in the range of 1541 to 5394. The effects of the jet velocities and impingement angle between the two jets on the breakup performance are studied. Four spray patterns are recognized, which are presheet formation, smooth sheet, ruffled sheet, and open-rim sheet regimes. Water sheet breakup length is found to be consistent with previous experimental and theoretical results in the lower Weber number (based on water jet diameter and velocity) range. In the relatively high Weber number range, the breakup length tends to a constant value with increasing Weber number, and some discrepancies between experimental and theoretical predictions do exist. Measured water sheet area increases with increasing liquid jet Reynolds numbers and impingement angle within the range of the current study.