Publications [#59088] of Earl H. Dowell
- Kholodar, Denis B. and Dowell, Earl H. and Thomas, Jeffrey P. and Hall, Kenneth C., Limit-cycle oscillations of a typical airfoil in transonic flow,
Journal of Aircraft, vol. 41 no. 5
pp. 1067 - 1072
(last updated on 2007/04/10)
Using an inviscid flow computational-fluid-dynamic model and a harmonic balance flow solver, a parametric investigation of how structural-inertial parameters and freestream Mach number of a transonic flow affect the limit-cycle oscillation characteristics of a typical two-degree-of-freedom transonic airfoil configuration is presented. The computational efficiency of the harmonic balance aerodynamic model allows a much more thorough exploration of the parameter range than has been possible previously.
Oscillations;Transonic flow;Computational fluid dynamics;Mathematical models;Harmonic analysis;Degrees of freedom (mechanics);Stiffness;Elasticity;Natural frequencies;