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Preliminary Design Considerations for Variable Geometry Radial Turbines with Multi-Points Specifications

Lauriau, Pierre-Thomas and Binder, Nicolas and Cros, Sandrine and Roumeas, Mathieu and Carbonneau, Xavier Preliminary Design Considerations for Variable Geometry Radial Turbines with Multi-Points Specifications. (2018) International Journal of Turbomachinery, Propulsion and Power, 3 (4). 1-13. ISSN 2504-186X

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Official URL: https://doi.org/10.3390/ijtpp3040022

Abstract

Radial turbines’ preliminary designs are usually carried out through some dimensionless approaches, such as the loading-to-flow-diagram and/or the blade speed ratio. In case of variable nozzle radial turbines, multi-points specifications must be considered, related to the improvement of the operating range. As preliminary design correlations and standards usually taken into consideration arise from studies dedicated to fixed geometry radial turbines, they need to be updated with regard to nozzle off-design opening configurations. This paper provides some theoretical basics in order to help designers considering variable geometry problems. Some complementary elements about the dimensionless methods are given by taking into account the nozzle opening effect. Then, useful considerations are brought regarding the preliminary design of variable geometry radial turbines with multi-points specifications.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Liebherr-Aerospace Toulouse (FRANCE)
Laboratory name:
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Deposited By: Nicolas Binder
Deposited On:21 Jan 2019 16:06

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