论文信息 - SENSITIVITY AND UNCERTAINTY ANALYSIS OF AERODYNAMIC FLOWS

SENSITIVITY AND UNCERTAINTY ANALYSIS OF AERODYNAMIC FLOWS

This paper presents a methodology for cascading uncertainties in input parameters through a CFD model to obtain uncertainty estimates of output flo w variables or output functionals such as lift, drag and moment coefficients for airfoils. The sensitivity equation method is used to derive flo w sensitivity equations which are then solved by an adaptive finite element method. Sensitivity information is then used to perform uncertainty analysis for turbulent flo ws over a backward facing step and over a NACA 0012 airfoil.

[1] Kevin J. Dowding,et al. Utilization of sensitivity coefficients to guide the design of a thermal battery , 1998 .

[2] B. Launder,et al. The numerical computation of turbulent flows , 1990 .

[3] Patrick J. Roache,et al. Verification and Validation in Computational Science and Engineering , 1998 .

[4] Dominique Pelletier,et al. A General Continuous Sensitivity Equation Formulation for the k-ε Model of Turbulence , 2004 .

[5] I. H. Abbott,et al. Theory of Wing Sections , 1959 .

[6] Eugene M. Cliff,et al. Sensitivity equations for turbulent flows , 2001 .

[7] D. W. Zingg,et al. Grid studies for thin-layer Navier-Stokes computations of airfoil flowfields , 1992 .

[8] Stephane Etienne,et al. Sensitivity and uncertainty analysis for turbulent flows , 2002 .

[9] D. W. Zingg. Grid studies for thin-layer Navier-Stokes computations of airfoil flowfields , 1992 .

[10] J. Z. Zhu,et al. The superconvergent patch recovery and a posteriori error estimates. Part 2: Error estimates and adaptivity , 1992 .

[11] Dominique Pelletier,et al. Sensitivity and uncertainty analysis for variable property flows , 2001 .