Effect of Agitator’s Types on the Hydrodynamic Flow in an Agitated Tank

Autor: Mohammed Foukrach, Mohamed Bouzit, Houari Ameur, Youcef Kamla
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Chinese Journal of Mechanical Engineering, Vol 33, Iss 1, Pp 1-18 (2020)
Druh dokumentu: article
ISSN: 1000-9345
2192-8258
DOI: 10.1186/s10033-020-00454-2
Popis: Abstract The aim of this paper is to study the effect of agitator’s types on the turbulent flows in stirred tanks without and with baffles. The hydrodynamics behavior induced by four different agitator’s types: a Rushton turbine (RT), a circular blade turbine (CBT), a diverging triangular blade turbine (DTBT) and converging triangular blade turbine (CTBT) are numerically predicted by solving the Navier-Stokes equations and RNG κ–ε turbulent model. The simulations are carried out using the Multi Reference Frame (MRF) approach. The numerical results showed good agreement with experiment. We find that the agitator CTBT gives an important profit on the power consumption per report/ratio the others and DTBT give a good reduction of the vortex size of the impeller angles.
Databáze: Directory of Open Access Journals
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