Abstract
This study considers the momentum transport and oxygen transfer in a modified stirred tank bioreactor. The design is novel in the sense that the impeller is positioned above the culture medium (instead of being suspended inside it). This design has potential benefits of enhanced gas transfer, reduced possibility of contamination, and better access to the culture medium. Computational fluid dynamics modelling is used to simulate the gas and fluid flow in the bioreactor. A rotation rate of 60 to 240 rpm (corresponding to the laminar regime) was adopted. Results show that the flow in the medium is swirl-dominant with an induced secondary flow in the meridional plane consisting of a steady and robust recirculation bubble. As the Reynolds number is increased beyond ∼427, we observe the formation of an additional smaller toroidal-bubble at the bottom wall. This bubble bears some resemblance to the vortex breakdown topology commonly found in confined swirling flows. In terms of the oxygen distribution, oxygen transfer from the gaseous phase into the culture medium is enhanced through forced diffusion taking place across the air-medium interface. For the Reynolds number range studied there is clear dominance of convection over diffusion in the transport of oxygen from the air-medium interface and throughout the culture medium.
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References
Martin I, Wendt D and Heberer M (2004) The role of bioreactors in tissue engineering. Trends Biotechnol. 22(2):80–86.
Martin Y, and Vermetter P (2005) Bioreactor for tissue mass culture: Design, characterization and recent advances. Biomaterials 26:7481–7503.
Chisti Y (2001) Hydrodynamic damage to animal cells. Crit. Rev. Biotechnol. 21:67–110.
Volkmer E, Drosse I, Otto S et al. (2008) Hypoxia in static and dynamic 3D culture systems for tissue engineering of bone. Tissue Eng Part A 14(8):1331–1340.
Koynov A, Tryggvason G, Khinast JG et al. (2007) Characterization of the localized hydrodynamic shear forces and dissolved oxygen distribution in sparged bioreactors. Biotechnol Bioeng. 97(2):317–331.
Dusting J, Sheridan, J. and Hourigan, K. (2006) A fluid dynamics approach to bioreactor design for cell and tissue culture. Biotechnology and Bioengineering 94(6), DOI: 10.1002/bit.20960.
Liow KYS, Tan BT, Thouas GA et al. (2008) CFD Modelling of the steady state momentum and oxygen transport in a bioreactor that is driven by an aerial disk. Modern Physics Letters (B) ‘in press’.
Liow KYS, Tan BT, Thompson MC et al. (2007) In silico characterization of the flow inside a novel bioreactor for cell and tissue culture. 16th Australasian Fluid Mechanics Conference, Gold Coast, Australia, 2007.
Thouas GA, Sheridan J, and Hourigan K (2007) A bioreactor model for mouse tumour progression. J. Biomed Biotech, Article ID 32754.
Thouas GA, Thompson MC, Contreras K et al. (2008) Combined improvement of oxygen diffusion and high-density cancer formation in a modified mini-bioreactor. In Proceedings of the 30th Annual International IEEE Engineering in Medicine and Biology Society Conference, Vancouver, British Columbia, Canada, 2008, pp 3586–3589.
Lopez JM (1989) Axisymmetric vortex breakdown in an enclosed cylinder flow. Lecture notes in physics. Springer, Berlin.
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© 2009 International Federation of Medical and Biological Engineering
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Liow, K.Y.S., Thouas, G.A., Tan, B.T., Thompson, M.C., Hourigan, K. (2009). Modelling the Transport of Momentum and Oxygen in an Aerial-Disk Driven Bioreactor Used for Animal Tissue or Cell Culture. In: Lim, C.T., Goh, J.C.H. (eds) 13th International Conference on Biomedical Engineering. IFMBE Proceedings, vol 23. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-92841-6_415
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DOI: https://doi.org/10.1007/978-3-540-92841-6_415
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-92840-9
Online ISBN: 978-3-540-92841-6
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