Effect of Splitter Blades on Performances of a Very Low Specific Speed Pump

The usage of splitter blades to enhance the performances low specific speed pumps is common practice. Based on experimental and numerical studies, influence addition one two investigated a very pump assess their impact not only performance characteristics but also losses in all domains. First, main characteristic curves are discussed it shown that enhances head while impairing its efficiency. Secondly, detailed analysis reveals improve flow parts pumps, volute. at impeller outlet shows largely benefit slip factor discharges more blade-congruent However, higher absolute velocity with increases friction volute wall, as confirmed by average wall shear stress different tested cases.