RT Journal Article ID 0a239dba51225d05 A1 Gadgil, Hrishikesh A1 Dolatabadi, Ali A1 Raghunandan, B. N. T1 MASS DISTRIBUTION STUDIES IN EFFERVESCENT SPRAYS JF Atomization and Sprays JO AAS YR 2011 FD 2011-12-21 VO 21 IS 5 SP 375 OP 390 K1 twin-fluid atomization K1 effervescent atomizers K1 optical patternation K1 mechanical patternation AB An experimental study on liquid mass distribution in effervescent sprays using water and air as working fluids is presented in this paper. Optical patternation and techniques of image processing are employed for analyzing the spray. The flow regime inside the effervescent atomizer largely dictates the mass distribution patterns. The patterns are seen to vary from concentrated, poorly atomized liquid lumps to uniformly distributed, fine droplets as the flow regime changes from bubbly flow to annular flow. A large variety of instantaneous spray patterns are observed in bubbly flow regime indicating a highly unsteady atomization process. However, relatively better consistency in spray patterns is observed at higher gas flow rates. Thus, the degree of unsteadiness gradually diminishes as gas flow rate is increased. The axial evolution of the spray in annular mode shows good mixing of liquid and gas across the interface. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,43b7323b4f35e27e,0a239dba51225d05.html