Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pumpReport as inadecuate




Data reduction problems using a 3 holes directional pressure probe to investigate mean flow characteristics in the vaneless gap between impeller and diffuser radial pump - Download this document for free, or read online. Document in PDF available to download.

1 LML - Laboratoire de Mécanique de Lille - FRE 3723

Abstract : Among several different measurement techniques that have been already performed and presented in a radial impeller pump model including PIV, a directional pressure probe has been used to obtain mean velocity field and stagnation pressure between impeller outlet and the inlet vaned diffuser sections. These measurements are supposed to get more information not only about global pump head coefficient including vaned diffuser ones but also about impeller performances itself. Pressure probe information is affected by rotor-stator interactions and impeller rotation, and this paper presents a way to explain and correct pressure probe indications in order to achieve a better evaluation of overall impeller mean performances. The use of unsteady RANS calculation results is found to be a useful way to perform better data reduction analysis for this purpose

keyword : pump diffuser calculation pIV measurements





Author: Patrick Cherdieu - Patrick Dupont - Annie-Claude Bayeul-Laine - Antoine Dazin - Gérard Bois -

Source: https://hal.archives-ouvertes.fr/



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