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An inverse method for the aerodynamic design of three-dimensional aircraft engine nacelles

Author:
Bell, R. A.
Published:
JAN 1, 1991.
Physical Description:
1 electronic document
Additional Creators:
Cedar, R. D.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary:
A fast, efficient and user friendly inverse design system for 3-D nacelles was developed. The system is a product of a 2-D inverse design method originally developed at NASA-Langley and the CFL3D analysis code which was also developed at NASA-Langley and modified for nacelle analysis. The design system uses a predictor/corrector design approach in which an analysis code is used to calculate the flow field for an initial geometry, the geometry is then modified based on the difference between the calculated and target pressures. A detailed discussion of the design method, the process of linking it to the modified CFL3D solver and its extension to 3-D is presented. This is followed by a number of examples of the use of the design system for the design of both axisymmetric and 3-D nacelles.
Other Subject(s):
Collection:
NASA Technical Reports Server (NTRS) Collection.
Note:
Document ID: 19920004740.
Accession ID: 92N13958.
Pennsylvania State Univ., Third International Conference on Inverse Design Concepts and Optimization in Engineering Sciences (ICIDES-3); p 405-417.
Terms of Use and Reproduction:
No Copyright.
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