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International Journal of Material Science Innovations
IJMSI 2015, 3(3), 97-113
Investigation of the Effect of Liquid and air swirl velocity and liquid viscosity on the hollow cone spray atomization
Tarbiat Modares University, Department of Mechanical Engineering, Tehran, Iran
ABSTRACT
Air-blast atomizers provide excellent atomization over a large range of fuel flow rates and very good penetration. In this study we consider an annular liquid sheet emanating from an air-blast atomizer subjected to inner and outer swirling air streams. A temporal stability analysis is carried out to model the atomization of a swirling viscous annular liquid sheet subject to axi-symmetric disturbances and inviscid swirling air streams. Numerical solutions to the dispersion equation under a wide range of flow conditions are carried out to investigate the effects of the liquid-gas swirling orientation on the maximum growth rate and its corresponding unstable wave number.