Accession Number : AD0724725

Title :   Unsteady Contribution to Vortex Induced Rolling Moment on Planar Finned Vehicles at High Angle of Attack.

Descriptive Note : Final rept. 1 Jan 68-31 Dec 70,

Corporate Author : BOSTON UNIV MASS ENGINEERING LABS

Personal Author(s) : Udelson,Daniel G.

Report Date : MAR 1971

Pagination or Media Count : 34

Abstract : A solution is found for the unsteady contribution to rolling moment on long cylindrical bodies with planar fins under ideal flow conditions due to vortices which are formed on the body at high angle of attack and washed past the fins at the tail. This contribution must be added to the steady state solution which was obtained in an earlier work. The theoretical development employs the classical Blasius contour integral. (Author)

Descriptors :   (*FIN STABILIZED AMMUNITION, ROLL), CYLINDRICAL BODIES, FINS, VORTICES, MOMENTS, ANGLE OF ATTACK, NUMERICAL ANALYSIS

Subject Categories : Rockets
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE