Adaptive grid computation of transonic flows through cascades and investigation of chordwise bending upon aeroelastic response

1994 ◽  
Author(s):  
Alexander Boschitsch ◽  
Todd Quackenbush
Keyword(s):  
Adaptive Grid ◽  
Transonic Flows ◽  
Aeroelastic Response ◽  
Grid Computation

A Nonlinear Numerical Simulator for Three-Dimensional Flows Through Vibrating Blade Rows

1999 ◽  
Vol 121 (2) ◽  
pp. 348-357 ◽  
Author(s):  
H. A. Chuang ◽  
J. M. Verdon
Keyword(s):  
Three Dimensional ◽  
Unsteady Flows ◽  
Operating Characteristics ◽  
Blade Vibration ◽  
Subsonic Flows ◽  
Transonic Flows ◽  
Aeroelastic Response ◽  
Blade Row ◽  
Dimensional Version ◽  
Blade Flutter

The three-dimensional, multistage, unsteady, turbomachinery analysis, TURBO, has been extended to predict the aeroelastic response of a blade row operating within a cylindrical annular duct. In particular, a blade vibration capability has been incorporated, so that the TURBO analysis can be applied over a solution domain that deforms with a vibratory blade motion. Also, unsteady far-field conditions have been implemented to render the computational inlet and exit boundaries transparent to outgoing unsteady disturbances and to allow for the prescription of incoming aerodynamic excitations. The modified TURBO analysis has been applied to predict unsteady subsonic and transonic flows. The intent is to validate this nonlinear analysis partially for blade flutter applications via numerical results for benchmark unsteady flows, and to demonstrate this analysis for a realistic fan rotor. For these purposes, we have considered unsteady subsonic flows through a three-dimensional version of the 10th Standard Cascade and unsteady transonic flows through the first-stage rotor of the NASA Lewis Rotor 67 fan. Some general correlations between aeromechanical stabilities and fan operating characteristics will be presented.

Assessment of a Framework for Static Aeroelastic Response Calculations in Transonic Flows

2021 ◽  
Author(s):  
J Allan A. Lyrio ◽  
João Luiz F. Azevedo ◽  
Domingos A. Rade ◽  
Ricardo -. Galdino da Silva ◽  
Carlos Breviglieri
Keyword(s):  
Transonic Flows ◽  
Aeroelastic Response
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