An analytic method is described that uses static experimental data to predict the separated flow effect on rigid and elastic aerospace-vehicle dynamics. Spike-induced flow separation, nose-induced flow separation, shock-induced flow separation, and base flow effects are studied. It is observed that the time lag occurring before a change of flow conditions causes a statically stabilizing load to produce negative aerodynanamic damping and an unstabilizing load causes a positive aerodynamic damping. The time-lagged quasi-steady theory predictions are compared with dynamic experimental results and good correlation exists for a large variety of vehicle geometries and types of flow separation.
Fluid dynamics of unsteady separated flow. I - Bodies of revolution
Progress in Aerospace Sciences ; 23 , 1 19
1986-01-01
Miscellaneous
No indication
English
Fluid dynamics of unsteady separated flow. Part I. Bodies of revolution
Elsevier | 1985
|Fluid dynamics of unsteady separated flow. Part II. Lifting surfaces
Elsevier | 1986
|