Open AccessPumping Efficiency of Screw Agitators in a Tube
Author(s) -
F. Rieger
Publication year - 2002
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/310
Subject(s) - reynolds number , impeller , turbulence , mechanics , centrifugal pump , range (aeronautics) , reynolds averaged navier–stokes equations , flow (mathematics) , tube (container) , physics , reynolds decomposition , reynolds equation , mathematics , mechanical engineering , materials science , engineering , composite material
Most information on pumping efficiency that is available in the literature is limited to the turbulent region (centrifugal pumps). The aim of this paper is to show the effect of the Reynolds number on the pumping efficiency of screw agitators for a wide range of Reynolds number values from creeping to the turbulent flow region. The dependence of pumping efficiency on Reynolds number extends our knowledge about the efficiency of classical impeller pumps restricted usually to the turbulent region.