Synergistic Effects in Coaxial Mixers: The Controlling Strategy of the Flow and Shear
Juan Huang
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorBotao Zhang
East China University of Science and Technology, State Key Laboratory of Chemical Engineering, No. 130 Meilong Road, 201418 Shanghai, China
Search for more papers by this authorGance Dai
East China University of Science and Technology, State Key Laboratory of Chemical Engineering, No. 130 Meilong Road, 201418 Shanghai, China
Search for more papers by this authorChen Chen
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorHaiyan Yu
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorCorresponding Author
Huaixiang Tian
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Correspondence: Huaixiang Tian ([email protected]), Shanghai Institute of Technology, School of Perfume and Aroma Technology, No. 100 Haiquan Road, 201418, Shanghai, China.Search for more papers by this authorJuan Huang
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorBotao Zhang
East China University of Science and Technology, State Key Laboratory of Chemical Engineering, No. 130 Meilong Road, 201418 Shanghai, China
Search for more papers by this authorGance Dai
East China University of Science and Technology, State Key Laboratory of Chemical Engineering, No. 130 Meilong Road, 201418 Shanghai, China
Search for more papers by this authorChen Chen
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorHaiyan Yu
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Search for more papers by this authorCorresponding Author
Huaixiang Tian
School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, 201418 Shanghai, China
Correspondence: Huaixiang Tian ([email protected]), Shanghai Institute of Technology, School of Perfume and Aroma Technology, No. 100 Haiquan Road, 201418, Shanghai, China.Search for more papers by this authorAbstract
Synergistic effects implying that strong flow and high shear can be obtained simultaneously were found in coaxial mixers. The flow field, axial pumping rate Qzave, and shear strain rate were studied to characterize the synergistic effect quantitatively. The indicator of synergy S was proposed to judge the goodness of synergy. The influences of the fluid viscosity, speed ratio, and rotation mode were studied. The S value becomes larger and smaller with increasing fluid viscosity for helical ribbon and pitched blade turbine impellers, respectively. The variation trend is opposite to the increase of the speed ratio. The co-rotation mode has better mixing performance than that of the counter-rotation mode at constant specific power.
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