AN INVESTIGATION OF PRESSURE DISTRIBUTION ON CERTAIN STARLIKE BODIES AT NEARLY 4M,
Abstract
It was theoretically established recently (according to the two Bibliography entries included at the end of the article) that starlike body shapes may become aerodynamically prospective in the sense of reducing drag and increasing the lift/drag ratio at supersonic and hypersonic speeds. The author describes the results of experimental investigations on drainage models. The investigation was carried out in an aerodynamic wind tunnel at M = 3.85 plus or minus 0.1 and Re = 6.0 x 106 (1 = 0.2m). The article is divided into two parts. In the first part the author explains measurement techniques and describes the models (three steel models of V-shaped wings). In the second part test results are discussed as well as a comparison with the theory. The author concludes that 'on the basis of experimental data on pressure distribution, it is not difficult to calculate the wave-drag coefficient of starlike bodies. ... the theoretical and experimental data are in good agreement and indicate that in cases predicted by theory the wave drag is reduced several-fold.' (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 17, 1966
- Accession Number
- AD0630168
Entities
People
- Alexis Baratoff