Turbomachinery blade optimization using the Navier-Stokes equations

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A method is presented to perform aerodynamic design optimization of turbomachinery blades. The method couples a Navier-Stokes flow solver with a grid generator and numerical optimization algorithm to seek improved designs for transonic turbine blades. A fast and efficient multigrid, finite-volume flow solver provides accurate performance evaluations of potential designs. Design variables consist of smooth perturbations to the blade surface. A unique elliptic-hyperbolic grid generation method is used to regenerate a Navier-Stokes grid after perturbations have been added to the geometry. Designs are sought which improve a design objective while remaining within specified constraints. The method is demonstrated with two ... continued below

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14 p.

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Chand, K. K. & Lee, K. D. December 1, 1997.

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Description

A method is presented to perform aerodynamic design optimization of turbomachinery blades. The method couples a Navier-Stokes flow solver with a grid generator and numerical optimization algorithm to seek improved designs for transonic turbine blades. A fast and efficient multigrid, finite-volume flow solver provides accurate performance evaluations of potential designs. Design variables consist of smooth perturbations to the blade surface. A unique elliptic-hyperbolic grid generation method is used to regenerate a Navier-Stokes grid after perturbations have been added to the geometry. Designs are sought which improve a design objective while remaining within specified constraints. The method is demonstrated with two transonic turbine blades with different types and numbers of design variables.

Physical Description

14 p.

Notes

OSTI as DE98054342

Other: FDE: PDF; PL:

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  • 36. American Institute of Aeronautics and Astronautics (AIAA) sciences meeting, Reno, NV (United States), 12-15 Jan 1998

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  • Other: DE98054342
  • Report No.: UCRL-JC--129284
  • Report No.: CONF-980105--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 300434
  • Archival Resource Key: ark:/67531/metadc685534

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 1997

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  • July 25, 2015, 2:20 a.m.

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  • April 10, 2017, 1:40 p.m.

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Chand, K. K. & Lee, K. D. Turbomachinery blade optimization using the Navier-Stokes equations, article, December 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc685534/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.