NDLI: Grid sensitivity for aerodynamic optimization and flow analysis

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Grid sensitivity for aerodynamic optimization and flow analysis

Content Provider	NASA Technical Reports Server (NTRS)
Author	Sadrehaghighi, I. Tiwari, S. N.
Copyright Year	1993
Description	After reviewing relevant literature, it is apparent that one aspect of aerodynamic sensitivity analysis, namely grid sensitivity, has not been investigated extensively. The grid sensitivity algorithms in most of these studies are based on structural design models. Such models, although sufficient for preliminary or conceptional design, are not acceptable for detailed design analysis. Careless grid sensitivity evaluations, would introduce gradient errors within the sensitivity module, therefore, infecting the overall optimization process. Development of an efficient and reliable grid sensitivity module with special emphasis on aerodynamic applications appear essential. The organization of this study is as follows. The physical and geometric representations of a typical model are derived in chapter 2. The grid generation algorithm and boundary grid distribution are developed in chapter 3. Chapter 4 discusses the theoretical formulation and aerodynamic sensitivity equation. The method of solution is provided in chapter 5. The results are presented and discussed in chapter 6. Finally, some concluding remarks are provided in chapter 7.
File Size	3908540
Page Count	120
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930015928
Archival Resource Key	ark:/13960/t8dg1nx78
Language	English
Publisher Date	1993-04-01
Access Restriction	Open
Subject Keyword	Aerodynamics Structural Design Sensitivity Algorithms Fluid Flow Mathematical Models Aircraft Design Computational Grids Grid Generation Mathematics Design Analysis Aerodynamic Characteristics Aircraft Structures Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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