A novel design methodology for enhanced compressor performance based on a dynamic stability metric

(cont.) compressor design optimization framework allows a versatile definition of the objective function such that any combination of pressure ratio, efficiency and dynamic stability can be prescribed at various operating speeds. The compressor design optimization framework uses an effective blade-to-blade CFD method (fast blade performance prediction method) to predict the blade row performance which is used to evaluate the compressor performance and dynamic stability. The fast blade performance prediction method is estimated to be 100 times faster than a direct numerical simulation and it is shown that the accuracy is within 2% of the direct numerical simulation results. Design Optimization of a Generic Three Stage Compressor. Two different design philosophies commonly used in compressor design practice are adopted. The first design philosophy is aimed at improving efficiency and the second is targeted to improve operability over the entire compressor operating range. The compressor design optimization for enhanced efficiency demonstrates that improvements in efficiency are due to an optimal matching of the compressor stages. The results show an average efficiency improvement of 1% throughout the operating envelope. At maximum climb conditions an efficiency enhancement of 2.7% is achieved. Furthermore, optimizing for efficiency does not deteriorate stability but yields an average improvement in surge margin of 2.6 points. The compressor design optimization based on ...

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2005

Author dc:creator

• Castiella Ruiz de Velasco, Juan Carlos, 1978-

Advisor dc:contributor.advisor

• Zoltán Spakovszky.

• Aeronautics and Astronautics.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/28906

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/28906