Accession Number : ADA014878


Title :   Boundary Layer Studies on a Spinning Tangent-Ogive-Cylinder Model


Descriptive Note : Final rept.


Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD


Personal Author(s) : Sturek, Walter B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a014878.pdf


Report Date : Jul 1975


Pagination or Media Count : 47


Abstract : An experimental investigation of the Magnus effect on a seven caliber tangent-ogive-cylinder model in supersonic flow is reported. The effects of surface spin, angle of attack and Mach number on boundary-layer transition have been studied using spark shadowgraphs of the flow. These shadowgraphs were taken while the model was mounted on offset struts to enable views to be obtained of the flow completely about the circumference of the model. The Magnus and normal forces were measured using the strain-gage balance technique for different boundary layer configurations. These measurements revealed a substantial sensitivity of Magnus force to the boundary layer configuration. A preliminary comparison of the Magnus measurements to the theory of Vaughn and Reis yielded poor agreement. The data have been tabulated to facilitate their use in the evaluation of proposed theoretical models of the Magnus effect.


Descriptors :   *BODIES OF REVOLUTION , *BOUNDARY LAYER , PROJECTILES , FLOW VISUALIZATION , COMPRESSIBLE FLOW , CYLINDRICAL BODIES , BALANCE , STRAIN GAGES , TANGENTS , SPINNING(MOTION) , BOUNDARY LAYER TRANSITION , OGIVES , BALLISTICS , THREE DIMENSIONAL FLOW , MAGNUS EFFECT , MEASUREMENT , MODELS


Subject Categories : Ballistics
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE