Proceedings Vol. 14 (2008)
ENGINEERING MECHANICS 2008
May 12 – 15, 2008, Svratka, Czech Republic
Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 172 - +6p., full text
A problem of microalgal growth modeling is presented. The hybrid multicompartment/CFD approach, introduced by Bezzo et al. (2003), is deeply analyzed and recommended for the processes with much faster fluid dynamics time-scale than the reaction rate. The method resides in photobioreactor division into a network of well-mixed compartments and in description of mass transfer among adjacent compartments. Photosynthetic reactions and other related phenomena are described in each compartment by an ordinary differential equation. The flow of microalgal culture in suspension is calculated by the steadystate computational fluid dynamics (CFD). Then the single cell trajectories are simulated using the random walk model of dispersion. The relative flow rates are derived from several thousand predicted trajectories according to our original methodology.
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