Simulation and experimental study on rotary core atomizing nozzle

Abstract

Abstract:

In order to study the spraying characteristics of a single- hole rotary core atomizing nozzle, the flow field and outflow field of the single-hole rotary core atomizing nozzle were simulated by establishing the numerical model, and the atomizing mechanism of the internal flow field and the distribution characteristics of the droplets in the outflow field were analyzed. The accuracy of the simulation was verified combining with the actual spraying. The results showed that the liquid discharge velocity can be greatly increased during the discharge process of the rotary core nozzle, and a hole can be formed at the nozzle, which can significantly improve the atomization efficiency. At low pressure, the nozzle can atomize water with a particle size of no more than 80 μm with uniform particle size distribution.

Key words: rotary core, atomizing nozzle, simulation

XIAN Xue-lei, MA Jian-qin, DONG Hai-bin, LIU Lian-xi, SHENG Yan-feng, LING Zong-yu. Simulation and experimental study on rotary core atomizing nozzle[J]. Fire Science and Technology, 2020, 39(12): 1709-1712.

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Simulation and experimental study on rotary core atomizing nozzle

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