Version 1
: Received: 9 January 2018 / Approved: 10 January 2018 / Online: 10 January 2018 (11:05:04 CET)
How to cite:
Hu, X.; Wang, X.; Lei, X.; Qiu, X.; Chen, L. Numerical Investigations of Blade Shape Effects on the Flow Characteristics in a Stirred Dead-End Membrane Bioreactor. Preprints2018, 2018010091. https://doi.org/10.20944/preprints201801.0091.v1
Hu, X.; Wang, X.; Lei, X.; Qiu, X.; Chen, L. Numerical Investigations of Blade Shape Effects on the Flow Characteristics in a Stirred Dead-End Membrane Bioreactor. Preprints 2018, 2018010091. https://doi.org/10.20944/preprints201801.0091.v1
Hu, X.; Wang, X.; Lei, X.; Qiu, X.; Chen, L. Numerical Investigations of Blade Shape Effects on the Flow Characteristics in a Stirred Dead-End Membrane Bioreactor. Preprints2018, 2018010091. https://doi.org/10.20944/preprints201801.0091.v1
APA Style
Hu, X., Wang, X., Lei, X., Qiu, X., & Chen, L. (2018). Numerical Investigations of Blade Shape Effects on the Flow Characteristics in a Stirred Dead-End Membrane Bioreactor. Preprints. https://doi.org/10.20944/preprints201801.0091.v1
Chicago/Turabian Style
Hu, X., Xiang Qiu and Lin-Feng Chen. 2018 "Numerical Investigations of Blade Shape Effects on the Flow Characteristics in a Stirred Dead-End Membrane Bioreactor" Preprints. https://doi.org/10.20944/preprints201801.0091.v1
Abstract
Numerical simulations of turbulent flows in a stirred dead-end membrane bioreactor are performed by the RNG k-ε model based on finite volume method using Fluent codes. Comparisons of numerical and experimental results confirm the reliability and feasibility of the constructed model. Flow structures such as wake flows and circulation loops in stirred flows were well simulated. An increase of stirring speed is proposed to use to minimize the low velocity region. The single vane stirrer is found to be beneficial for biological separations. Results reveal that the increase of vane number can enhance the mixing effect in flow domains. However, a circular disk stirrer goes against the formation of vertical circulations. The six-vane stirrer is found to be able to provide a uniform distribution of high shear stress.
Engineering, Industrial and Manufacturing Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
