CFD-based prediction of initial microalgal adhesion to solid surfaces using force balances
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URI: http://hdl.handle.net/10835/15368
ISSN: 0892-7014
DOI: https://doi.org/10.1080/08927014.2021.1974847
ISSN: 0892-7014
DOI: https://doi.org/10.1080/08927014.2021.1974847
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Kichouh Aiadi, Salim; Sánchez Mirón, Asterio; Gallardo Rodríguez, Juan José; Soriano Jerez, Yolanda; Cerón García, María Del Carmen; [et al.]Fecha
2021-08-23Resumen
Adhesion of microalgal cells to photobioreactor walls reduces productivity resulting in significant economic losses. The physico-chemical surface properties and the fluid dynamics present in the photobioreactor during cultivation are relevant. However, to date, no multiphysical model has been able to predict biofouling formation in these systems. In this work, to model the microalgal adhesion, a Computational Fluid Dynamic simulation was performed using a Eulerian-Lagrangian particle-tracking model. The adhesion criterion was based on the balance of forces and moments included in the XDLVO model. A cell suspension of the marine microalga Nannochloropsis gaditana was fed into a commercial flow cell composed of poly-methyl-methacrylate coupons for validation. Overall, the simulated adhesion criterion qualitatively predicted the initial distribution of adhered cells on the coupons. In conclusion, the combined Computational Fluid Dynamics-Discrete Phase Model (CFD-DPM) approach can be used...
Palabra/s clave
Computational fluid dynamics
Nannochloropsis
XDLVO
Cell adhesion
Flow cell
Force balance