RT Journal Article ID 2a7e14d53e5d7667 A1 Srinivasan, Vedanth A1 Salazar, Abraham J. A1 Saito, Kozo T1 NUMERICAL INVESTIGATION ON THE DISINTEGRATION OF ROUND TURBULENT LIQUID JETS USING LES/VOF TECHNIQUES JF Atomization and Sprays JO AAS YR 2008 FD 2008-05-17 VO 18 IS 7 SP 571 OP 617 AB Disintegration of round turbulent liquid jets issuing from a coaxial-type atomizer into a high-pressure chamber is numerically studied using a coupled large eddy simulation (LES)/volume of fluid (VOF) technique. The investigations are directed toward assessing the influence of relative velocity between the liquid and gas streams on the disintegration characteristics. For this purpose, different combinations of liquid and gas injection velocities have been discussed. With higher relative velocities, the computations reveal development of short-wave shear instabilities, leading to ligament and drop formation. However, with a decrease in relative velocity, reduced breakup events are established. Mechanisms such as interface stretching, velocity profile relaxation, and shear layer effects are captured effectively and are used to explain the ligament characteristics under different injection conditions. Prediction of jet spread angle and undisturbed jet length based on the numerical modeling show good agreement with the experimental observations. The overall capability of a coupled LES/VOF technique to simulate disintegration of round turbulent liquid jets is demonstrated. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,3efac19e5149c3f1,2a7e14d53e5d7667.html