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A computational geometry method for centrifugal compressor impellers
University West, Department of Engineering Science, Division of Mechanical Engineering and Natural Sciences.
2016 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Modern centrifugal compressor impeller geometry often consist of curves and surfaces with a high degree of three dimensionality. This makes the geometry of the impeller difficult to model with commercial CAD-tools. Additionally, in modern optimization processes of impellers the geometry is commonly altered, this puts high demands on the method that is used for generating the geometry. In this work a new computational geometry method for centrifugal compressor impellers is compiled. The new method is designed to be flexible and to support present day optimization processes.The new method is a compilation based upon publications regarding impeller geometry and impeller optimization. It utilizes Bezier curves and B-splines to generate geometry and supports optimization by allowing control points of the constructing curves to be relocated to change the shape of the geometry. To test the new method, a standalone application was successfully developed with the aid of the SCRUM development process. With an easy to use graphical user interface the application generates and displays a 3D model of the geometry generated with the new method.

Place, publisher, year, edition, pages
2016. , 30 p.
Keyword [en]
centrifugal compressor, impeller, impeller geometry, impeller design, turbomachinery, geometry
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hv:diva-9825Local ID: EXM502OAI: oai:DiVA.org:hv-9825DiVA: diva2:956345
Subject / course
Mechanical engineering
Educational program
Maskiningenj├Âr
Supervisors
Examiners
Available from: 2016-08-30 Created: 2016-08-29 Last updated: 2016-08-30Bibliographically approved

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