DRAG LOADING ON MODEL TARGETS
Abstract
Measurements of drag forces on model targets were made during Operation Redwing in the spring of 1956. From the force measurements and measurements of the free-stream parameters of side-on and dynamic pressures, drag coefficients were obtained for each of the model configurations under each of the test conditions. Reasonable drag-coefficient correlation was obtained for all of the test models (except spheres) for the field and wind tunnel data. Hence, it was concluded that, for the model sizes used, the field flow conditions approached the steady-state flow conditions of the wind tunnel. The short-duration flow in the shock tube and the flow blockage resulting from the model size obviated the establishment of steady drag conditions in this facility. Thus, only extrapolations can be made to wind-tunnel and field conditions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 14, 1964
- Accession Number
- AD0357969
Entities
People
- J. Petes
- L. Slifer
Organizations
- Naval Ordnance Laboratory