Simulation and analysis of flow field in large shear-type mixing tank

Dai Ning; Zhang Yuzhong; Zhang Maolong; Yuan Yang

Volume 28 Issue 14

Jul. 2012

Turn off MathJax

Article Contents

Abstract

References

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2012 > 28(14): 58-64.

Dai Ning, Zhang Yuzhong, Zhang Maolong, Yuan Yang. Simulation and analysis of flow field in large shear-type mixing tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(14): 58-64.

Citation:

PDF (2786 KB)

Simulation and analysis of flow field in large shear-type mixing tank

More Information

Received Date: December 20, 2011
Revised Date: June 19, 2012
Published Date: July 14, 2012

Graphical Abstract

Abstract

Abstract

The flow field in large shear-type mixing tank has been investigated by using computational fluid dynamics (CFD) method. The flow type, pressure, velocity and turbulent dissipation rate in a mixing tank are simulated using ANSYS13.0 with standard k-ε turbulence model and multiple reference frame method (MRF). It was found that negative pressure zone was expanded and liquid flow rate increased as impeller speed increased. The turbulence was enhanced and energy dissipation rate was high and concentrated in the area of high shearing device. The simulation results showed that fluid mixed significantly in the high shearing device. The results provided a reference for optimization design of the industrial mixing tank.
- mixing,
- flow fields,
- numerical analysis,
- shear-type,
- tank

FullText(HTML)

References (28)

References

[1]	陈登丰. 搅拌器和搅拌容器的发展[J]. 压力容器，2008，25(2)：33－41，46.Chen Dengfeng. Development of agitators and pressure vessels with agitators[J]. Pressure Vessel Technology, 2008, 25(2): 33－41, 46. (in Chinese with English abstract)
[2]	杨蕾，李志鹏，高正明. 多级定转子连续分散混合器内的微观混合性能[J]. 北京化工大学学报：自然科学版，2010，37(1)：1－4.Yang Lei, Li Zhipeng, Gao Zhengming. Micromixing characteristics in a continuous rotor-stator mixer[J]. Journal of Beijing University of Chemical Technology: Natural Science Edition, 2010, 37(1): 1－4. (in Chinese with English abstract)
[3]	Kowalski A J, Cooke M, Hall S. Expression for turbulent power draw of an in-line Silverson high shear mixer[J]. Chemical Engineering Science, 2011, 66(3): 241－249.
[4]	Hall S, Cooke M, El-Hamouz A, et al. Droplet break-up by in-line silverson rotor-stator mixer[J]. Chemical Engineering Science, 2011, 66(10): 2068－2079.
[5]	Paul E L, Kresta S M, Atiem-obeng V A, et al. Handbook of industrial mixing: Science and practice[M]. New York: John WiIey and Sons Inc, 2004, 470－505.
[6]	Pacek A W, Baker M, Utomo AT. Characterisation of flow pattern in a rotor-stator high shear mixer[R]. Copenhagen: Proceedings of European Congress of Chemical Engineer, 2007.
[7]	Boerefijn R, Juvin P Y, Garzon P. A narrow size distribution on a high shear mixer by applying a flux number approach[J]. Powder Technology, 2009, 189(2): 172－176.
[8]	Cristhian Almeida-Rivera, Peter Bongers. Modelling and experimental validation of emulsification processes in continuous rotor-stator units[J]. Computers and Chemical Engineering, 2010, 34(5): 592－597.
[9]	Adam J. Kowalski. An expression for the power consumption of in-line rotor-stator devices[J]. Chemical Engineering and Processing: Process Intensification, 2009, 48(1): 581－585.
[10]	Utomo A, Baker M, Pacek A W. The effect of stator geometry on the ?ow pattern and energy dissipation rate in a rotor-stator mixer[J]. Chemical Engineering Research and Design, 2009, 87(4): 533－542.
[11]	Adi T Utomo, Michael Baker, Andrzej W. Pacek. Flow pattern, periodicity and energy dissipation in a batch rotor-stator mixer[J]. Chemical Engineering Research and Design, 2008, 86(12): 1397－1409.
[12]	T.M. Chitu, D. Oulahna, M. Hemati. Wet granulation in laboratory-scale high shear mixers: Effect of chopper presence, design and impeller speed[J]. Powder Technology, 2011, 206(1): 34－43.
[13]	Fabien Barailler, Mourad Heniche, Philippe A. Tanguy. CFD analysis of a rotor-stator mixer with viscous fluids[J]. Chemical Engineering Science, 2006, 61(9): 2888－2894.
[14]	Runi Ditlev Egholm, Peter Fischer, Kathleen Feigl, et al. Experimental and numerical analysis of droplet deformation in a complex flow generated by a rotor-stator device[J]. Chemical Engineering Science, 2008, 63(13): 3526－3536.
[15]	Julien Pellé, Souad Harmand. Heat transfer study in a rotor-stator system air-gap with an axial inflow[J]. Applied Thermal Engineering, 2009, 29(8): 1532－1543.
[16]	江帆，黄鹏. Fluent高级应用与实例分析[M]. 北京：清华大学出版社，2008：1－39.
[17]	姜小放，曹西京，司震鹏，等. 不同挡板结构的浆料搅拌罐流场仿真与分析[J]. 包装与食品机械，2009，27(5)：80－83.Jiang Xiaofang, Cao Xijing, Si Zhengpeng, et al. Comparative study of flow in a mixing tank with different baffles[J]. Packaging and Food Machinery, 2009, 27(5): 80－83. (in Chinese with English abstract)
[18]	施卫东，田飞，曹卫东，等. 流线型两叶片XCK搅拌器内部流动[J]. 排灌机械，2008，26(6)：6－9.Shi Weidong, Tian Fei, Cao Weidong, et al. Inner flow of new-type streamline shape XCK mixer with two blades[J]. Drainage and Irrigation Machinery, 2008, 26(6): 6－9. (in Chinese with English abstract)
[19]	Hideya Nakamura, Yoshikazu Miyazaki, Yoshinobu Sato, et al. Numerical analysis of similarities of particle behavior in high shear mixer granulators with different vessel sizes[J]. Advanced Powder Technology, 2009, 20(5): 493－501.
[20]	Ranade V V, Bourne J B. Fluid mechanics and blending in agitated tanks[J]. Chemical Engineering Science, 1991, 46(8): 1883－1893.
[21]	Yeoh S L, Papadakis G, Yianneskis M. Numerical simulation of turbulent ?ow characteristics in a stirred vessel using the LES and RANS approaches with the sliding/deforming mesh methodology[J]. Chemical Engineering Research and Design, 2004, 82(7): 834－848.
[22]	Jaworski Z, Zakrzewska B. Modelling of the turbulent wall jet generated by a pitched blade turbine impeller: The effect of turbulence model[J]. Chemical Engineering Research and Design, 2002,80(8): 846－854.
[23]	张德胜，施卫东，张华，姚捷，关醒凡. 不同湍流模型在轴流泵性能预测中的应用[J]. 农业工程学报，2012，28(1)：66－71.Zhang Desheng, Shi Weidong, Zhang Hua, et al. Application of different turbulence models for predicting performance of axial flow pump[J]. Transactions of the CSAE, 2012, 28(1):66-71. (in Chinese with English abstract)
[24]	Xu Youlin, Wang Xiwei, Zheng Jiaqiang, et al. Simulation and experiment on agricultural chemical mixing process for direct injection system based on CFD[J]. Transactions of the CSAE, 2010, 26(5): 148－152.
[25]	丛国辉，王福军. 湍流模型在泵站进水池漩涡模拟中的适用性研究[J]. 农业工程学报，2008，24(6)：31－35.Cong Guohui, Wang Fujun. Applicability of turbulence models in numerical simulation of vortex flow in pump sump[J]. Transactions of the CSAE, 2008, 24(60): 31－35. (in Chinese with English abstract)
[26]	袁炀，曾程，李璐，等. 高剪切混合罐内物料流场的可视化与结构改进[J]. 食品与机械，2009，25(3)：69－73，81.Yuan Yang, Zeng Cheng, Li Lu, et al. Visualization of the flow patterns and structure im-provement in a high-shear mixer[J]. Food and Machinery, 2009, 25(3): 69－73, 81.(in Chinese with English abstract)
[27]	王春林，张裕中. 安装位置对高剪切混合器流体力学性能的影响[J]. 食品与机械，2010，26(5)：98－101.Wang Chunlin, Zhang Yuzhong. Effect of high-shear mixer locations on the flow pattern and energy dissipation[J]. Food and Machinery, 2010, 26(5): 98－101.(in Chinese with English abstract)
[28]	Yoshitoshi Saito, Xianfeng Fan, Andy Ingram, et al. A new approach to high-shear mixer granulation using positron emission particle tracking[J]. Chemical Engineering Science, 2011, 66(4): 563－569.Simulation and analysis of flow field in large shear-type mixing tank

[1]	RU Yu, XUE Jiangkun, LIU Bin, FANG Shuping, HU Chenming, ZHOU Jie. Simulation and experiment of the anti-shake damping of liquid in helicopter application tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2023, 39(9): 55-63. DOI: 10.11975/j.issn.1002-6819.202302013
[2]	Hu Xinyu, Yan Haijun, Chen Xin. Calculation method of fertilizer concentration at outlet based on differential pressure tank considering fertilizer dissolution[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(24): 99-106. DOI: 10.11975/j.issn.1002-6819.2020.24.012
[3]	Hu Xinyu, Yan Haijun, Chen Xin. Uniform fertilization method based on differential pressure tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(1): 119-127. DOI: 10.11975/j.issn.1002-6819.2020.01.014
[4]	Liu Yu, Wang Chaoyuan, Shi Zhengxiang, Li Baoming. Disinfection effect and cleaning mode determination for milk tank using electrolyzed water[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2017, 33(20): 300-306. DOI: 10.11975/j.issn.1002-6819.2017.20.037
[5]	Fan Junliang, Zhang Fucang, Wu Lifeng, Yan Shicheng, Xiang Youzhen. Field evaluation of fertigation uniformity in drip irrigation system with pressure differential tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2016, 32(12): 96-101. DOI: 10.11975/j.issn.1002-6819.2016.12.014
[6]	Hu Xiaoming, Li Wanli, Sun Li, Zhao Zhiguo. Liquid sloshing reduces driving stability of semi-trailer liquid tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2013, 29(6): 49-58.
[7]	Zhou Yang, Chen Youguang, Duan Dengxuan, Wang Mei. Quality improvement of industrial aquaculture recycled water by sand filters[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2009, 25(12): 254-258.
[8]	Meng Yibin, Li Jiusheng, Li Bei. Fertilization performance of the pressure differential tank in micro-irrigation system[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2007, 23(3): 41-45.
[9]	Jiang Dingsheng, Gao Peng, Xu Xuexuan, Yang Shiwei. Trial Study on Designing of Sand-Settling Tank for Runoff Harvesting[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2001, 17(5): 27-31.
[10]	Chen Baolin, Yuan Yongjun. Analysis and Calculation of HeatInsulated Property　ofVacuumMultilayer Adiabatic Beer Tank[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 1998, 14(3): 240-243.