Abstract
The resonant behaviors of an ultra-sonic gas atomization nozzle with a zero mass-flux jet actuator were numerically investigated with FLUENT software by using a double precision unsteady two-dimensional pressure-based solver. The Spalart-Allmaras turbulence model was adopted in the simulations. Numerical results indicated that the oscillation properties of the gas efflux were effectively improved. Several resonatory frequencies corresponding to different vibration modes of gas were distinguished in the nozzle. With the changing of nozzle geometric parameters, different characters among those modes were elucidated by analyzing the propagations of pressure waves.
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Project supported by the National Natural Science Foundation of China (Grant Nos.10772107, 10702038), the Shanghai Municipal Key Projects on Basic Research (Grant No.08JC1409800), the Innovation Project of Shanghai Municipal Education Commission (Grant No.08YZ10), and the Shanghai Municipal Science and Technology Commission (Grant No.09DZ1141502)
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Zu, Hb., Wang, Zl. Resonant behaviors of ultra-sonic gas atomization nozzle with zero mass-flux jet actuator. J. Shanghai Univ.(Engl. Ed.) 15, 166–172 (2011). https://doi.org/10.1007/s11741-011-0715-1
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DOI: https://doi.org/10.1007/s11741-011-0715-1