Detail publikace
Effect of Splitter Blades on Performances of a Very Low Specific Speed Pump
CHABANNES, L. ŠTEFAN, D. RUDOLF, P.
Originální název
Effect of Splitter Blades on Performances of a Very Low Specific Speed Pump
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The usage of splitter blades to enhance the performances of low specific speed pumps is common practice. Based on experimental and numerical studies, the influence of the addition of one and two splitter blades is investigated on a very low specific speed pump to assess their impact not only on the performance characteristics but also on the losses in all pump domains. First, the main characteristic curves are discussed and it is shown that the usage of splitter blades enhances the head of the pump while not impairing its efficiency. Secondly, a detailed analysis of the losses in the pump reveals that splitter blades improve the flow in all parts of the pumps, but the volute. The flow at the impeller outlet shows that splitter blades largely benefit the slip factor and discharges a more blade-congruent flow in the volute. However, higher absolute velocity at the outlet of the impeller with splitter blades increases friction at the volute wall, as confirmed by the average wall shear stress in the different tested cases.
Klíčová slova
low specific speed; numerical simulation; splitter blades; volute; centrifugal pump
Autoři
CHABANNES, L.; ŠTEFAN, D.; RUDOLF, P.
Vydáno
24. 6. 2021
Nakladatel
MDPI
ISSN
1996-1073
Periodikum
ENERGIES
Ročník
14
Číslo
13
Stát
Švýcarská konfederace
Strany od
1
Strany do
13
Strany počet
13
URL
Plný text v Digitální knihovně
BibTex
@article{BUT171988,
author="Lilian {Chabannes} and David {Štefan} and Pavel {Rudolf}",
title="Effect of Splitter Blades on Performances of a Very Low Specific Speed Pump",
journal="ENERGIES",
year="2021",
volume="14",
number="13",
pages="1--13",
doi="10.3390/en14133785",
issn="1996-1073",
url="https://www.mdpi.com/1996-1073/14/13/3785"
}