Effects of nose bluntness, roughness, and surface perturbations on the asymmetric flow past slender bodies at large angles of attackThe effects of such geometric perturbations as variations of model-tip sharpness and roughness, as well as discrete surface perturbations, on the asymmetric flow past slender bodies is experimentally investigated for the cases of a cone/cylinder model having a 10-deg semiapex angle and a 3.0-caliber tangent ogive model. Both models have base diameters of 3.5 inches, and were tested in laminar flow conditions at angles-of-attack in the 30-60 deg range. Single, discrete roughness elements were represented by beads; bead effectiveness was judged on the basis of the extent to which they affected the flowfield in various conditions.
Document ID
19890060319
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Moskovitz, Cary A. (North Carolina State Univ. Raleigh, NC, United States)
Dejarnette, F. R. (North Carolina State University Raleigh, United States)
Hall, Robert M. (NASA Langley Research Center Hampton, VA, United States)