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Méthodologie et optimisation dans la conception et l'analyse des performances des turbomachines à fluide incompressible

Abstract : Faced with the problem of design in the pump industry, the main difficulty of manufacturers is to have fast, reliable and accurate methods. This research work involving, both theory and experiments deals, with this topic. We have developed a complete procedure for design, performance analysis and optimization of centrifugal and mixed incompressible flow turbomachinery. First of all, the definition of the pump geometry as well as the analysis of its global performance are carried out starting from the mean streamline method (1D), based on both ideal models and experimental correlations. A second stage of optimization is achieved from a quasi 3D method, by studying the meridional flow and blade to blade flow, using REMIX software developed by LEMFI. Finally, a three-dimensional flow study is performed by CFD tools from AEA-Technology group (CFX). The three-dimensional study provides the means to complete and validate the established procedure. To illustrate this procedure, a centrifugal machine with a volute was studied used. First, the analysis of the existing impeller was carried out to develop the various steps of the procedure. Then, the whole impeller-volute pump, was studied and compared with the previous trial runs. Special attention was paid to unsteady effects, resulting from impeller volute interaction. The results obtained are satisfactory. Finally, the integral method was applied to optimize a mixed flow pump equipped with a deswirl. As it is a badly dimensioned pump, it is a good example of what this method can do.
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https://pastel.archives-ouvertes.fr/tel-00005730
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Submitted on : Monday, April 5, 2004 - 5:57:29 PM
Last modification on : Thursday, November 22, 2018 - 2:26:54 PM
Long-term archiving on: : Wednesday, November 23, 2016 - 4:16:57 PM

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  • HAL Id : tel-00005730, version 1

Citation

Miguel Asuaje. Méthodologie et optimisation dans la conception et l'analyse des performances des turbomachines à fluide incompressible. Mécanique [physics.med-ph]. Arts et Métiers ParisTech, 2003. Français. ⟨tel-00005730⟩

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