Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 110409
Title Discrete particle simulations predicting mixing behavior of solid substrate particles in a rotating drum fermenter
Author(s) Schutyser, M.A.I.; Padding, J.T.; Weber, F.J.; Briels, W.J.; Rinzema, A.; Boom, R.M.
Source Biotechnology and Bioengineering 75 (2001)6. - ISSN 0006-3592 - p. 666 - 675.
DOI https://doi.org/10.1002/bit.1192
Department(s) Sub-department of Food and Bioprocess Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2001
Abstract A soft-sphere discrete particle model was used to simulate mixing behavior of solid substrate particles in a slow rotating drum for solid-state fermentation. In this approach, forces acting on and subsequent motion of individual particles can be predicted. The (2D) simulations were qualitatively and quantitatively validated by mixing experiments using video and image analysis techniques. It was found that the simulations successfully predicted the mixing progress as a function of the degree of filling and size of the drum. It is shown that only relatively large, straight baffles perpendicular to the drum wall (67␘f the drum radius) increase the mixing performance of the rotating drum. Considering the different aspects of mixing dealt with in this work, it is concluded that the soft sphere discrete particle model can serve as a valuable tool for investigating mixing of solid substrate particles. Finally, it is expected that this model may evolve into a potential tool for design and scale-up of mixed solid-state fermenters
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