| SIMULATION OF LIQUID AND GAS PHASE CHARACTERISTICS OF AERATED-LIQUID JETS IN QUIESCENT AND CROSS FLOW CONDITIONS |
| Kyoung-Su Im1, Zeng-Chan Zhang1, Grant Cook Jr.1, Ming-Chia Lai2, Mun Soo Chon3 |
1Livermore Software Technology Corporation
2Wayne State University
3Korea National University of Transportation |
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| ABSTRACT |
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The simulation of the liquid- and gas-phase properties of aerated-liquid jets in various quiescent and cross flow
conditions are presented in the study. For simplicity, water is used as the liquid for all test conditions. The effect of various
air-to-liquid ratios under super-sonic cross flow conditions are simulated and compared to experimental conditions, which is
taken in the supersonic wind tunnel with a dimension of 762 × 152 × 127 mm. An injector with an orifice diameter of 0.5 mm
is used both in a non-aerated and aerated injection into a supersonic cross flow prescribed by the momentum flux ratio of the
liquid jet to free stream air, q0. The initial conditions of the spray calculation were estimated from internal flow simulation
using VOF and X-ray data. The conservation-element and solution-element (CE/SE) method, a novel numerical framework
for general conservation law, is applied to simulate the compressible flow. The effect of degree of aeration, breakup, and
mixing of the liquid spray are demonstrated. The spray penetration height and average droplet size along with a spray
penetration axis are quantitatively compared with data. The shock train flow structures induced by the presence of a liquid jet
are further discussed. |
| Key Words:
Liquid jet, Cross flow, Aerated injection, Spray penetration, Breakup, CE/SE method |
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Corresponding Author.
Mun Soo Chon , Email. 
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