A surface definition code for turbine blade surfaces

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Description

A numerical interpolation scheme has been developed for generating the three-dimensional geometry of wind turbine blades. The numerical scheme consists of (1) creating the frame of the blade through the input of two or more airfoils at some specific spanwise stations and then scaling and twisting them according to the prescribed distributions of chord, thickness, and twist along the span of the blade; (2) transforming the physical coordinates of the blade frame into a computational domain that complies with the interpolation requirements; and finally (3) applying the bi-tension spline interpolation method, in the computational domain, to determine the coordinates of ... continued below

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Pages: (207 p)

Creation Information

Yang, S.L. (Michigan Technological Univ., Houghton, MI (United States)); Oryang, D. & Ho, M.J. (Tuskegee Univ., AL (United States)) May 1, 1992.

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Description

A numerical interpolation scheme has been developed for generating the three-dimensional geometry of wind turbine blades. The numerical scheme consists of (1) creating the frame of the blade through the input of two or more airfoils at some specific spanwise stations and then scaling and twisting them according to the prescribed distributions of chord, thickness, and twist along the span of the blade; (2) transforming the physical coordinates of the blade frame into a computational domain that complies with the interpolation requirements; and finally (3) applying the bi-tension spline interpolation method, in the computational domain, to determine the coordinates of any point on the blade surface. Detailed descriptions of the overall approach to and philosophy of the code development are given along with the operation of the code. To show the usefulness of the bi-tension spline interpolation code developed, two examples are given, namely CARTER and MICON blade surface generation. Numerical results are presented in both graphic data forms. The solutions obtained in this work show that the computer code developed can be a powerful tool for generating the surface coordinates for any three-dimensional blade.

Physical Description

Pages: (207 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92010574
  • Report No.: NREL/TP-257-4099
  • Grant Number: AC02-83CH10093
  • DOI: 10.2172/5246536 | External Link
  • Office of Scientific & Technical Information Report Number: 5246536
  • Archival Resource Key: ark:/67531/metadc1069712

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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.

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Creation Date

  • May 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • May 29, 2018, 4:56 p.m.

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Yang, S.L. (Michigan Technological Univ., Houghton, MI (United States)); Oryang, D. & Ho, M.J. (Tuskegee Univ., AL (United States)). A surface definition code for turbine blade surfaces, report, May 1, 1992; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc1069712/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.