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Journal of Hydrodynamics

, Volume 30, Issue 6, pp 1143–1152 | Cite as

Numerical investigations of the effects of blade shape on the flow characteristics in a stirred dead-end membrane bioreactor

  • Xu-qu Hu (胡徐趣)
  • Xing-yi Wang (王星燚)
  • Xiu-cheng Lei (雷秀成)
  • Xiang Qiu (邱翔)
  • Lin-feng Chen (陈林烽)Email author
Articles
  • 15 Downloads

Abstract

Numerical simulations of turbulent flows in a stirred dead-end membrane bioreactor are performed by using the RNG k - ε model based on the finite volume method with the software Fluent. Comparisons of numerical and experimental results confirm the reliability and the feasibility of the constructed model. The flow structures such as the wake flows and the circulation loops in the stirred flows are well simulated. An increase of stirring speed is proposed to minimize the low velocity region. The single vane stirrer is found to be beneficial for biological separations. Results suggest that the increase of the vane number can enhance the mixing effect in the flow domains. However, a circular disk stirrer goes against

Key words

Turbulent flow stirred flows membrane fouling membrane bioreactor 

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Notes

Acknowledgments

This work was supported by the self-determined project of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University (Grant No. 51475002), the Fundamental Research Funds for the Central Universities (Hunan University).

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Copyright information

© China Ship Scientific Research Center 2018

Authors and Affiliations

  • Xu-qu Hu (胡徐趣)
    • 1
  • Xing-yi Wang (王星燚)
    • 1
  • Xiu-cheng Lei (雷秀成)
    • 1
  • Xiang Qiu (邱翔)
    • 2
  • Lin-feng Chen (陈林烽)
    • 3
    Email author
  1. 1.State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle EngineeringHunan UniversityChangshaChina
  2. 2.College of ScienceShanghai Institute of TechnologyShanghaiChina
  3. 3.School of Naval Architecture and Ocean EngineeringJiangsu University of Science and TechnologyZhenjiangChina

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