Effect of the shaft eccentricity and rotational direction on the mixing characteristics in cylindrical tank reactors

Houari Ameur

doi:10.1016/j.cjche.2016.05.011

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Effect of the shaft eccentricity and rotational direction on the mixing characteristics in cylindrical tank reactors

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Effect of the shaft eccentricity and rotational direction on the mixing characteristics in cylindrical tank reactors
- Chinese Journal of Chemical Engineering Vol. 24, Issue 12, Pages: 1647-1654(2016)
- Affiliations：
  
  Institute of Science and Technology, University Center Ahmed Salhi, Ctr Univ Naâma,Algeria,45000
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.05.011
  CLC：
- Published：2016
- Accepted：
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Houari Ameur. Effect of the shaft eccentricity and rotational direction on the mixing characteristics in cylindrical tank reactors[J]. , 2016, 24(12): 1647-1654.
DOI：

Houari Ameur. Effect of the shaft eccentricity and rotational direction on the mixing characteristics in cylindrical tank reactors[J]. , 2016, 24(12): 1647-1654. DOI： 10.1016/j.cjche.2016.05.011.

摘要

Abstract

Strategy of the shaft eccentricity is introduced to enhance the mixing characteristics in a flat bottomed cylindrical vessel without baffles. The mixing is ensured by a six-curved blade impeller. Three solutions which are models of food emulsions are used as working fluids. These solutions have a shear thinning behavior modeled by the power-law. The effects of fluid properties

stirring rates

impeller rotational direction and impeller eccentricity on the 3D flow fields and power consumption are investigated. Three values of impeller eccentricity are considered

namely 0%

24% and 48% of the vessel diameter. It is found that the opposite clockwise rotational direction reduces the power consumption

compared with the clockwise rotational direction. Also

the obtained results show that an impeller placed at an eccentric position between 24% and 48% of the vessel diameter and at the third of the vessel height may ensure the best mixing characteristics.

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