Abstract
First, Fluent software was used to numerically simulate the internal flow field of the shunt tube in the bubbling line, and standard k-ε turbulence model was applied to simulate the velocity profile of each vent gas on the manifold. The results showed that 40 cm was the opportune length of the shunt tube to obtain the similar flow rate of each gas jet, and the uniform and controllable bubbles. Then, the Mixture multiphase flow model and the extended standard k-ε turbulence model were used to simulate of the jet aperture and the hole spacing on the shunt tube. The results showed that the gas flow rate was positively related to the turbulence kinetic energy, gas volume fraction and turbulent dissipation rate. The highest turbulent flow energy conversion ratio (67.7%) was harvested when the jet aperture was 6 mm and the hole spacing was 70 mm, on the condition of 8 m/s as the reference airflow velocity in the bubbling pipeline. The cleaning results displayed the significant effects of these factors on the cleaning effect of the surface and enterocoelia of crucian. When the cleaning time was 170 s, the air flow rate was 145 L/min, and the cleaning amount was 1.5 kg, the cleaning efficiency was as high as 92.
Publication Date
1-28-2020
First Page
110
Last Page
115,120
DOI
10.13652/j.issn.1003-5788.2020.01.018
Recommended Citation
Lu, LI; Zhi-ming, ZHANG; Wen-jin, WU; Lan, WANG; Guang-quan, XIONG; and Liu, SHI
(2020)
"Numerical simulation and optimization of piping turbulence in bubbling fish cleaner,"
Food and Machinery: Vol. 36:
Iss.
1, Article 18.
DOI: 10.13652/j.issn.1003-5788.2020.01.018
Available at:
https://www.ifoodmm.cn/journal/vol36/iss1/18
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