Axial-Force Measurements on Cone Cylinders Mounted in a Simulated Aeroballistic Range Track in Tunnel F with Application to a Full-Scale System
Abstract
Axial-force measurements on cone-cylinder models mounted in a simulated aeroballistic range model restraining track system are presented. The data were obtained in the range 15.4 equal to or less than M equal to or less than 19.2 at Reynolds numbers between 0.29 and 1.08 x 1,000,000 per foot. An analytical technique based on inviscid conical flow-field solutions and the experimental data was used to develop an empirical method for estimating the contribution to the model drag from interaction of the model bow shock on the track system and its subsequent reflections back onto the model surface. It is shown that about 15 to 40 percent of total vehicle drag (neglecting sliding friction between the model and the track rails) will be from this shock interaction contribution. Important parameters are cone angle, nose bluntness, model velocity, track dimensions, and range pressure. Calculations are performed over the expected envelope of operation for a full-scale test facility.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA013793
Entities
People
- David E. Boylan
Organizations
- Arnold Engineering Development Complex