Study on critical speed of vortex rupture and gas-liquid two-phase flow in rotating soybean milk machine-Reference-Cited by-同舟云学术

Study on critical speed of vortex rupture and gas-liquid two-phase flow in rotating soybean milk machine

Published:2020-09-04 Issue:2 Volume:17 Page:97-110
ISSN:1556-3758
Container-title:International Journal of Food Engineering
language:en
Short-container-title:

Author:

Li Longhai¹,Dou Hua-Shu¹^ORCID,Du Yu¹,Guo Hongwei²,Huang Hao²

Affiliation:

1. Faculty of Mechanical Engineering and Automation , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018, China

2. Joyoung Group Company , Hangzhou , Zhejiang 310018, China

Abstract

Abstract The gas-liquid two-phase flow field inside a soybean milk machine is simulated with the Navier–Stokes equations, Renormalization group (RNG) k-ɛ turbulence model and the particle two-phase flow model. The critical speed of vortex breakdown in the container and the influence of the characteristics of the two-phase flow on the soybean crushing effect at different speeds are investigated. The results show that there is a critical value of rotating speed of 1500 rpm for the vortex breakdown in the studied machine. At this rotational speed, the turbulent eddy dissipation (TED) reaches the maximum, and the position where the vortex first rupture is near the central axis and with a distance of 0.01 m from the central axis. It is also found that with the increase of rotating speed, the pressure difference around the blade varies significantly. The research in this study has important implication for the design of the soybean milk machine.

Funder

National Natural Science Foundation of China

Publisher

Walter de Gruyter GmbH

Subject

Engineering (miscellaneous),Food Science,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/ijfe-2020-0144/pdf

Reference33 articles.

1. Zhu, LH, Song, Q, Ze, XB. Numerical simulation of the flow field of household soybean milk machine with the S shape blade. China Appl Technol 2013:62–4. https://doi.org/CNKI:SUN:JYDQ.0.2013-09-020.

2. Wang, G, Zhao, LJ, Xiong, SB, Li, QR, Wu, MC, Zhao, SM. Effects of blender structure and its force of soybean milk machine on soybean milk quality. Food Sci (N Y) 2011;32:162–7. https://doi.org/10.1097/RLU.0b013e3181f49ac7.

3. Torré, JP, Fletcher, DF, Lasuye, T, Xuereb, C. An experimental and computational study of the vortex shape in a partially baffled agitated vessel. Chem Eng Sci 2007;62:1915–26. https://doi.org/10.1016/j.ces.2006.12.020.

4. Torré, JP, Fletcher, DF, Lasuye, T, Xuereb, C. Transient hydrodynamics and free surface capture of an under-baffled stirred tank during stopping. Chem Eng Res Des 2007;85:626–36. https://doi.org/10.1205/cherd06174.

5. Guan, XP, Li, XJ, Yang, N, Liu, MY. CFD simulation of gas-liquid flow in stirred tanks: effect of drag models. Chem Eng J 2019. https://doi.org/10.1016/j.cej.2019.04.134.

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