Improvements in relaminarization characteristics of turbine blades using design optimization

J. R. Narayan, Aditi Chattopadhyay, N. Pagaldipti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A multidisciplinary design optimization procedure for the design of turbine blades has been developed. The blade cross section (airfoil) is designed for improved aerodynamic performance via shape optimization. The focus has been on shaping the blade geometry such that the parameter that characterizes the accelerating flow about the blade is modified to delay the onset of transition to turbulence. The airfoil shape is modeled using analytical splines. The spline parameters and the blade geometric parameters are used as design variables in the optimization procedure. A mulliobjective optimization formulation technique, based on the Kreisselmeier-Steinhauser function, is used to improve the acceleration parameter at several control points along the airfoil surface. Aerodynamic analysis is performed using a two-dimensional panel code. The acceleration parameter has been used as the objective function during optimization. Results obtained show improvements in the acceleration parameter distribution of the optimum configuration.

Original languageEnglish (US)
Title of host publication6th Symposium on Multidisciplinary Analysis and Optimization
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1372-1381
Number of pages10
StatePublished - 1996
Event6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996 - Bellevue, United States
Duration: Sep 4 1996Sep 6 1996

Other

Other6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996
CountryUnited States
CityBellevue
Period9/4/969/6/96

Fingerprint

Airfoils
Turbomachine blades
Turbines
Splines
Aerodynamics
Shape optimization
Turbulence
Geometry
Design optimization

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

Cite this

Narayan, J. R., Chattopadhyay, A., & Pagaldipti, N. (1996). Improvements in relaminarization characteristics of turbine blades using design optimization. In 6th Symposium on Multidisciplinary Analysis and Optimization (pp. 1372-1381). American Institute of Aeronautics and Astronautics Inc, AIAA.

Improvements in relaminarization characteristics of turbine blades using design optimization. / Narayan, J. R.; Chattopadhyay, Aditi; Pagaldipti, N.

6th Symposium on Multidisciplinary Analysis and Optimization. American Institute of Aeronautics and Astronautics Inc, AIAA, 1996. p. 1372-1381.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Narayan, JR, Chattopadhyay, A & Pagaldipti, N 1996, Improvements in relaminarization characteristics of turbine blades using design optimization. in 6th Symposium on Multidisciplinary Analysis and Optimization. American Institute of Aeronautics and Astronautics Inc, AIAA, pp. 1372-1381, 6th AIAA/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1996, Bellevue, United States, 9/4/96.
Narayan JR, Chattopadhyay A, Pagaldipti N. Improvements in relaminarization characteristics of turbine blades using design optimization. In 6th Symposium on Multidisciplinary Analysis and Optimization. American Institute of Aeronautics and Astronautics Inc, AIAA. 1996. p. 1372-1381
Narayan, J. R. ; Chattopadhyay, Aditi ; Pagaldipti, N. / Improvements in relaminarization characteristics of turbine blades using design optimization. 6th Symposium on Multidisciplinary Analysis and Optimization. American Institute of Aeronautics and Astronautics Inc, AIAA, 1996. pp. 1372-1381
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