Accession Number : ADA267282


Title :   Unsteady Separated Flows: Empirical Model and Control


Descriptive Note : Final rept. 1 Aug 88-31 Dec 92,


Corporate Author : COLORADO UNIV AT BOULDER DEPT OF AEROSPACE ENGINEERING SCIENCES


Personal Author(s) : Luttges, Marvin ; Robinson, Michael


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267282.pdf


Report Date : 07 Jun 1993


Pagination or Media Count : 29


Abstract : Research examined the similarity behavior between forced unsteady separated flows elicited by airfoils and delta wings. For the first time, all of the existing unsteady separation data reported in open literature was assembled and contrasted directly. A vortex model which predicted vortex development and shedding characteristics from first principles was developed. Preliminary work was also initiated in using neural network techniques to model and predict these nonlinear unsteady flows.... Vortex Models, Forced Unsteady Separation.


Descriptors :   *AIRFOILS , *UNSTEADY FLOW , *DELTA WINGS , *FLOW SEPARATION , COMPUTER PROGRAMS , NEURAL NETS , PREDICTIONS , CYLINDRICAL BODIES , REYNOLDS NUMBER , SEPARATION , WINGS , BEHAVIOR , WAKE , FLOW FIELDS , MODELS , VORTICES


Subject Categories : Aerodynamics
      Cybernetics


Distribution Statement : APPROVED FOR PUBLIC RELEASE