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research-article

Investigations of Inducers Operating with High Rotational Speed

[+] Author and Article Information
Björn Gwiasda

Institute of Fluid Mechanics and Fluid Machinery, Department of Mechanical and Process Engineering, University of Kaiserslautern, Kaiserslautern, 67663, Germany
gwiasda@mv.uni-kl.de

Matthias Mohr

Institute of Fluid Mechanics and Fluid Machinery, Department of Mechanical and Process Engineering, University of Kaiserslautern, Kaiserslautern, 67663, Germany
matthias.mohr@mv.uni-kl.de

Martin Böhle

Professor, Institute of Fluid Mechanics and Fluid Machinery, Department of Mechanical and Process Engineering, University of Kaiserslautern, Kaiserslautern, 67663, Germany
martin.boehle@mv.uni-kl.de

1Corresponding author.

ASME doi:10.1115/1.4041730 History: Received February 28, 2018; Revised October 10, 2018

Abstract

Suction performance, pressure rise and efficiency for four different inducers are examined with CFD simulations and experiments performed with 18000 rpm and 24000 rpm. The studies originate from a research project which includes the design of a new test bench in order to judge the design of the different inducers. This test bench allows to conduct experiments with a rotational speed of up to 40000 rpm and high pressure ranges with water as working fluid. Experimental results are used to evaluate the accuracy of the simulations and to gain a better understanding of the design parameter. The influence of increasing the rotating speed from 18000 rpm to 24000 rpm on the performance is also shown.

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