考虑固体颗粒的自由喷流噪声的数值研究

Translated title of the contribution: Numerical Study of Free Jet Noise Considering Solid Particles

Ji Li Rong, Ni Su A, Xiu Yan Cheng, Bo Chao Fan

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The effect of solid particles on the jet flow field and sound field was investigated. Six different turbulence models were to analyze the steady-state calculation of free jets. It s found that the RNG k-ε model was most suitable for numerical simulation of steady-state jets. The LES model was used to calculate the unsteady results of the jet flow, and the FW-H equation was used to analyze the jet sound field. The comparison with the experimental data verified the correctness of the numerical model. Based on this model, the effect of solid particles on the free jet flow field and sound field was studied. The simulation results show that the presence of solid particles reduces the supersonic length of the jet flow field and significantly increases jet temperature. And it increases the noise in the downstream region of the jet and reduces the noise in the mid-upstream region.

Translated title of the contributionNumerical Study of Free Jet Noise Considering Solid Particles
Original languageChinese (Traditional)
Pages (from-to)826-834
Number of pages9
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume40
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020

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Rong, J. L., A, N. S., Cheng, X. Y., & Fan, B. C. (2020). 考虑固体颗粒的自由喷流噪声的数值研究. Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, 40(8), 826-834. https://doi.org/10.15918/j.tbit1001-0645.2019.181