Simulation study on the performance of external mixing air atomization nozzle

Junyan Fan; Zhiqing Cheng; Zhendong Zhang

doi:10.1117/12.2668742

16 February 2023 Simulation study on the performance of external mixing air atomization nozzle

Junyan Fan, Zhiqing Cheng, Zhendong Zhang

Proceedings Volume 12591, Sixth International Conference on Traffic Engineering and Transportation System (ICTETS 2022); 125912L (2023) https://doi.org/10.1117/12.2668742
Event: 6th International Conference on Traffic Engineering and Transportation System (ICTETS 2022), 2022, Guangzhou, China

Abstract

Based on the three-dimensional model of an external mixing fan-shaped air atomization nozzle, the atomization characteristics of the nozzle are analyzed. According to the nozzle, three kinds of orifice combination models are established, and the most basic model is simulated to verify the validity of the simulation model. The atomization characteristics of this type of air atomizing nozzle under different inlet pressure conditions are studied by CFD method. The effects of nozzle structure and inlet pressure on spray angle, droplet size, and the change of droplet size on different mixing sections are analyzed. The results shows that with the increase of inlet pressure, the distance required to reach the minimum droplet size is shortened, the expansion of the spray angle is mainly controlled by the airflow of the fan-shaped control holes, and the auxiliary atomization holes enhance the droplet refinement effect.

Citation Download Citation

Junyan Fan, Zhiqing Cheng, and Zhendong Zhang "Simulation study on the performance of external mixing air atomization nozzle", Proc. SPIE 12591, Sixth International Conference on Traffic Engineering and Transportation System (ICTETS 2022), 125912L (16 February 2023); https://doi.org/10.1117/12.2668742

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