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Chemical and Process Engineering

Tytuł artykułu

Numerical study of fluid flow and power consumption in a stirred vessel with a Scaba 6SRGT impeller

Autorzy Ameur , H.  Bouzit, M.  Helmaoui, M. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The present work deals with agitation of non-Newtonian fluids in a stirred vessel by Scaba impellers. A commercial CFD package (CFX 12.0) was used to solve the 3D hydrodynamics and to characterise at every point flow patterns especially in the region swept by the impeller. A shear thinning fluid with yield stress was modelled. The influence of agitator speed, impeller location and blade size on the fluid flow and power consumption was investigated. The results obtained are compared with available experimental data and a good agreement is observed. It was found that an increase in blade size is beneficial to enlargement of the well stirred region, but that results in an increased power consumption. A short distance between the impeller and the tank walls limits the flow around the agitator and yields higher power consumption. Thus, the precise middle of the tank is the most appropriate position for this kind of impeller.
Słowa kluczowe
PL wirnik Scaba   numeryczne badania 3D   przepływ nienewtonowski  
EN 3D numerical study   non-Newtonian fluid   stirred vessel   Scaba impeller   impeller eccentricity  
Wydawca Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
Czasopismo Chemical and Process Engineering
Rocznik 2011
Tom Vol. 32, nr 4
Strony 351--366
Opis fizyczny Bibliogr. 41 poz., rys., tab., wykr.
autor Ameur , H.
autor Bouzit, M.
autor Helmaoui, M.
  • Faculte de Genie Mecanique, USTO-MB, 1505 El M'nouar, Oran, Algerie
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