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Turbine Airfoil Optimization Using Quasi-3D Analysis Codes
Author
Source
International Journal of Aerospace Engineering
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-11-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
A new approach to optimize the geometry of a turbine airfoil by simultaneously designing multiple 2D sections of the airfoil is presented in this paper.
The complexity of 3D geometry modeling is circumvented by generating multiple 2D airfoil sections and constraining their geometry in the radial direction using first- and second-order polynomials that ensure smoothness in the radial direction.
The flow fields of candidate geometries obtained during optimization are evaluated using a quasi-3D, inviscid, CFD analysis code.
An inviscid flow solver is used to reduce the execution time of the analysis.
Multiple evaluation criteria based on the Mach number profile obtained from the analysis of each airfoil cross-section are used for computing a quality metric.
A key contribution of the paper is the development of metrics that emulate the perception of the human designer in visually evaluating the Mach Number distribution.
A mathematical representation of the evaluation criteria coupled with a parametric geometry generator enables the use of formal optimization techniques in the design.
The proposed approach is implemented in the optimal design of a low-pressure turbine nozzle.
American Psychological Association (APA)
Goel, Sanjay. 2009. Turbine Airfoil Optimization Using Quasi-3D Analysis Codes. International Journal of Aerospace Engineering،Vol. 2009, no. 2009, pp.1-13.
https://search.emarefa.net/detail/BIM-479161
Modern Language Association (MLA)
Goel, Sanjay. Turbine Airfoil Optimization Using Quasi-3D Analysis Codes. International Journal of Aerospace Engineering No. 2009 (2009), pp.1-13.
https://search.emarefa.net/detail/BIM-479161
American Medical Association (AMA)
Goel, Sanjay. Turbine Airfoil Optimization Using Quasi-3D Analysis Codes. International Journal of Aerospace Engineering. 2009. Vol. 2009, no. 2009, pp.1-13.
https://search.emarefa.net/detail/BIM-479161
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479161