On 3D Inverse Design of Centrifugal Compressor Impellers With Splitter Blades

Author:

Zangeneh M.1

Affiliation:

1. University College London, London, UK

Abstract

In the design of centrifugal compressor impellers with splitter blades it is quite common to use the same blade shapes on the full and splitter blades with the splitters placed at the mid-pitch location. However, recent results using conventional design methodology have indicated that by moving the pitchwise location of the leading edge of the splitter it is possible to improve splitter performance. In this paper a 3D inverse design method is developed for the design of compressor impellers with splitters. In this design method the blades are designed subject to a specified distribution of the circulation on the full and splitter blades. The paper describes the choice of loading (or derivative of circulation with respect to meridional distance) and stacking condition to limit the complexity of the blade shape. Two different generic impellers are designed with different splitter leading edge location. The performance of these inverse designed impellers is then compared with the corresponding conventional impellers by using a 3D viscous code at design and off-design conditions.

Publisher

American Society of Mechanical Engineers

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1. A Detailed Loss Analysis Methodology for Centrifugal Compressors;Journal of Turbomachinery;2022-03-31

2. Centrifugal Compressor Performance Improvement through Multi Splitter Impeller;Polish Maritime Research;2019-06-01

3. Bibliography;Design and Analysis of Centrifugal Compressors;2018-12-27

4. Centrifugal Compressor Performance Improvements Through Impeller Splitter Location;Journal of Energy Resources Technology;2017-11-09

5. Redesign of a Compressor Stage for a High-Performance Electric Supercharger in a Heavily Downsized Engine;Journal of Engineering for Gas Turbines and Power;2017-11-07

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