@ARTICLE{Bartelmus_Grażyna_Parametric_2016, author={Bartelmus, Grażyna and Janecki, Daniel and Burghardt, Andrzej}, volume={vol. 37}, number={No 1 March}, journal={Chemical and Process Engineering}, pages={97-107}, howpublished={online}, year={2016}, publisher={Polish Academy of Sciences Committee of Chemical and Process Engineering}, abstract={The aim of the present study was to investigate the sensitivity of a multiphase Eulerian CFD model with respect to relations defining drag forces between phases. The mean relative error as well as standard deviation of experimental and computed values of pressure gradient and average liquid holdup were used as validation criteria of the model. Comparative basis for simulations was our own data-base obtained in experiments carried out in a TBR operating at a co-current downward gas and liquid flow. Estimated errors showed that the classical equations of Attou et al. (1999) defining the friction factors Fjk approximate experimental values of hydrodynamic parameters with the best agreement. Taking this into account one can recommend to apply chosen equations in the momentum balances of TBR.}, type={Artykuły / Articles}, title={Parametric sensitivity of a CFD model concerning the hydrodynamics of trickle-bed reactor (TBR)}, URL={http://www.journals.pan.pl/Content/85120/PDF/09-paper-Janecki-final.pdf}, doi={10.1515/cpe-2016-0010}, keywords={hydrodynamics, trickle-flow regime, pressure gradient, liquid holdup, phases interaction, CFD}, }