Browse

Single and High-Lift Airfoil Design Optimization Using Aerodynamic Sensitivity Analysis

Cited 0 time in Web of Science Cited 0 time in Scopus
Authors
Kim, Chang Sung; Lee, youngjoon; Kim, Chongam; Rho, Oh-Hyun
Issue Date
2001-01
Publisher
The Korean Society for Aeronautical & Space Sciences
Citation
KSAS International Journal Vol.2 No.1, pp. 20-27
Keywords
공학sensitivity analysisturbulence modeldesign variablesChimera grid
Abstract
Aerodynamic sensitiVIty analysis is performed for the Navier-Stokes equations
coupled with two-equation turbulence models using a discrete adjoint method and a
direct differentiation method respectively. Like the mean flow equations, the
turbulence model equations are also hand- differentiated to accurately calculate the
sensitivity derivatives of flow quantities with respect to design variables in
turbulent viscous flows. The sensitivity codes are then compared with the flow
solver in terms of solution accuracy, computing time and computer memory
requirements. The sensitivity derivatives obtained from the sensitivity codes with
different turbulence models are compared with each other. The capability of the
present sensitivity codes to treat complex geometry is successfully demonstrated by
analyzing the flows over multi-element airfoils on Chimera overlaid grid systems.
Language
English
URI
http://hdl.handle.net/10371/82294
Files in This Item:
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Journal Papers (저널논문_기계항공공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse