Numerical Simulation of Two-Phase Flow inside and outside a Swirl Nozzle for Dispersing Superfine Powder

Wei Dong Shi; Liang Zhang; Hai Yan He; Jiang Hai Liu; Liang Chen

doi:10.4028/www.scientific.net/AMR.505.170

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 505Numerical Simulation of Two-Phase Flow inside and...

Numerical Simulation of Two-Phase Flow inside and outside a Swirl Nozzle for Dispersing Superfine Powder

Abstract:

In this paper, a swirl nozzle is established to disperse superfine powder aerodynamically. And Reynolds stress model (RSM) is adopted to simulate the strongly swirling, compressible and transonic gas flow in the nozzle and its rear. Combined with discrete phase model (DPM), the concentration distribution of particle group in size of 2.5μm is studied. The simulated results show that, the distribution of swirl strength is determined basically by the nozzle structure, while the total pressure has little effect on it; compared with an irrotational nozzle, the swirl nozzle could achieve a better dispersing effect for superfine powder.

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Periodical:

Advanced Materials Research (Volume 505)

Pages:

170-174

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.505.170

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Online since:

April 2012

Authors:

Wei Dong Shi, Liang Zhang, Hai Yan He, Jiang Hai Liu, Liang Chen

Keywords:

Discrete Phase Model, Reynolds Stress Model, Swirl Nozzle, Two-Phase Flow

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