Transonic airfoil design by constrained optimization

Date

1991-01-01

Author

Lee, K.D.
Eyi, Sinan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

192
views

0
downloads

An aerodynamic design method is developed which couples flow analysis and numerical optimization to find an airfoil shape with improved aerodynamic performance. The flow analysis code is based on the coupled Euler and boundary layer equations in order to include the rotational, viscous physics of transonic flows. The numerical optimization process searches for the best feasible design for the specified design objective and design constraints. The method is demonstrated with several examples at transonic flow conditions.

Subject Keywords

Applied Aerodynamics

URI

https://hdl.handle.net/11511/69341

DOI

https://doi.org/10.2514/6.1991-3287

Collections

Department of Aerospace Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

TRANSONIC AIRFOIL DESIGN BY CONSTRAINED OPTIMIZATION LEE, KD; Eyi, Sinan (1993-11-01) AN aerodynamic design method is developed which couples flow analysis and numerical optimization to find an airfoil shape with improved aerodynamic performance. The flow analysis code is based on the coupled Euler and boundary-layer equations in order to include the rotational, viscous physics of transonic flows. The numerical optimization process searches for the best feasible design for the specified design objective and design constraints. The method is demonstrated with several examples at transonic flo...
Transonic turbomachinery blade design using optimization Eyi, Sinan (null; 1997-01-01) © 1997, American Institute of Aeronautics and Astronautics, Inc.An aerodynamic design method is presented that couples flow analysis and numerical optimization to improve the aerodynamic performance of a turbomachinery blade subject to specified design objectives and constraints. The flow field prediction is based on the Euler equations in order to represent the nonlinear rotational physics of transonic flows. The sensitivity analysis that measures the response of the flow with respect to a geometry perturb...
Numerical and experimantal analysis of flapping motion Sarıgöl, Ebru; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2007) The aerodynamics of two-dimensional and three-dimensional flapping motion in hover is analyzed in incompressible, laminar flow at low Reynolds number regime. The aim of this study is to understand the physics and the underlying mechanisms of the flapping motion using both numerical tools (Direct Numerical Simulation) and experimental tools (Particle Image Velocimetry PIV technique). Numerical analyses cover both two-dimensional and three-dimensional configurations for different parameters using two differen...
Aerodynamic parameter estimation using flight test data Kutluay, Ümit; Platin, Bülent Emre; Mahmutyazıcıoğlu, Gökmen; Department of Mechanical Engineering (2011) This doctoral study aims to develop a methodology for use in determining aerodynamic models and parameters from actual flight test data for different types of autonomous flight vehicles. The stepwise regression method and equation error method are utilized for the aerodynamic model identification and parameter estimation. A closed loop aerodynamic parameter estimation approach is also applied in this study which can be used to fine tune the model parameters. Genetic algorithm is used as the optimization ker...
FOREBODY OPTIMIZATION OF A JET TRAINER AIRCRAFT USING RESPONSE SURFACE METHODOLOGY WITH GENETIC ALGORITHM Kandemir , Ömer; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2021-9-1) The aerodynamic design of an aircraft's forebody geometry has a significant impact on its performance and stability. Although most studies on aircraft performance have focused on optimizing wing-like structures, the contribution of an effective forebody design to aircraft performance could be as significant as that of wing-like structures. A well-designed forebody can reduce the wave drag and improve the directional characteristics at high angles of attack. The forebody optimization of a jet trainer ai...

Citation Formats

K. D. Lee and S. Eyi, “Transonic airfoil design by constrained optimization,” 1991, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69341.