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Tandem-blade centrifugal compressor design and optimization by means of 3D inverse design

Oliveira, R; Zhang, L; Zangeneh, M; (2023) Tandem-blade centrifugal compressor design and optimization by means of 3D inverse design. In: Proceedings of the 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023. (pp. pp. 1-14). European Turbomachinery Society Green open access

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Abstract

In centrifugal compressor design, previous studies have shown the potential of achieving enhanced performance through the inclusion of tandem blades. The conventional design method for this type of machines is based in splitting a baseline impeller into main and tandem blade, and applying appropriate pitch-wise and streamwise displacements. This simple design method has been proven insufficient in achieving better performance than the baseline design, without extra design modifications. In this paper, a design workflow based in a 3D inverse design method is specifically assembled and applied to the tandem-blade design of centrifugal compressors. The blade geometry is controlled by imposing specified distributions of blade loading in tandem and main blades. Starting from an initial full blade design, different tandem-blade designs are generated using the inverse design methodology. Performance of the initial and optimized designs are then assessed by 3D CFD analysis at design and off-design conditions. The mechanism of performance improvement is investigated in detail. In addition, the structural performance of the generated designs is also assessed by means of FEA.

Type: Proceedings paper
Title: Tandem-blade centrifugal compressor design and optimization by means of 3D inverse design
Event: 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023
Open access status: An open access version is available from UCL Discovery
DOI: 10.29008/ETC2023-270
Publisher version: https://doi.org/10.29008/ETC2023-270
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10174679
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