The Resource Adjoint-based airfoil shape optimization in transonic flow, by Joe-Ray Gramanzini

Adjoint-based airfoil shape optimization in transonic flow, by Joe-Ray Gramanzini

Label
Adjoint-based airfoil shape optimization in transonic flow
Title
Adjoint-based airfoil shape optimization in transonic flow
Statement of responsibility
by Joe-Ray Gramanzini
Creator
Author
Subject
Language
eng
Summary
"The primary focus of this work is efficient aerodynamic shape optimization in transonic flow. Adjoint-based optimization techniques are employed on airfoil sections and evaluated in terms of computational accuracy as well as efficiency. This study examines two test cases proposed by the AIAA Aerodynamic Design Optimization Discussion Group. The first is a two-dimensional, transonic, inviscid, non-lifting optimization of a Modified-NACA 0012 airfoil. The second is a two-dimensional, transonic, viscous optimization problem using a RAE 2822 airfoil. The FUN3D CFD code of NASA Langley Research Center is used as the ow solver for the gradient-based optimization cases. Two shape parameterization techniques are employed to study their effect and the number of design variables on the final optimized shape: Multidisciplinary Aerodynamic-Structural Shape Optimization Using Deformation (MASSOUD) and the BandAids free-form deformation technique. For the two airfoil cases, angle of attack is treated as a global design variable. The thickness and camber distributions are the local design variables for MASSOUD, and selected airfoil surface grid points are the local design variables for BandAids. Using the MASSOUD technique, a drag reduction of 72.14% is achieved for the NACA 0012 case, reducing the total number of drag counts from 473.91 to 130.59. Employing the BandAids technique yields a 78.67% drag reduction, from 473.91 to 99.98. The RAE 2822 case exhibited a drag reduction from 217.79 to 132.79 counts, a 39.05% decrease using BandAids."--Abstract, page iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorDate
1985-
http://library.link/vocab/creatorName
Gramanzini, Joe-Ray
Degree
M.S.
Dissertation year
2015.
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Aerofoils
  • Aerodynamics, Transonic
  • Drag (Aerodynamics)
  • Camber (Aerofoils)
Label
Adjoint-based airfoil shape optimization in transonic flow, by Joe-Ray Gramanzini
Instantiates
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 60-62)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
921185760
Extent
1 online resource (xi, 63 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some colored).
Specific material designation
remote
System control number
(OCoLC)921185760
Label
Adjoint-based airfoil shape optimization in transonic flow, by Joe-Ray Gramanzini
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 60-62)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
921185760
Extent
1 online resource (xi, 63 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some colored).
Specific material designation
remote
System control number
(OCoLC)921185760

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