ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Numerical analysis of hydrodynamics in a mechanically agitated gas–liquid pseudophase system

Magdalena Cudak

West Pomeranian University of Technology, Szczecin, Szczecin, Poland

E-mail: cudak@zut.edu.pl

Abstract: The paper presents the results of numerical simulations of hydrodynamics in a gas–liquid pseudophase system (sucrose solution with yeast suspension). The simulations were performed in a bioreactor with a working volume of 0.02 m³, equipped with a Rushton turbine or Smith turbine stirrers. The results of the study were developed in the form of vectors of liquid velocity and the contours of the analyzed magnitudes. Also, the local values of the gas hold-up φ in the gas–liquid pseudophase system were presented. The results of numerical simulations of the gas hold-up were compared to the results of my own experimental study.

Keywords: Bioreactor ; Mixing ; Gas hold-up ; Numerical modeling ; Gas–liquid pseudophase system 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-018-0605-5

Chemical Papers 73 (2) 481–489 (2019)