THE ROTATING ARM FACILITY FOR HIGH SPEED LOW DENSITY AERODYNAMIC STUDIES
Abstract
The feasibility and usefulness of a rotating arm facility for aerodynamic studies at low density was studied. Structure of the arm itself appears to be the most critical aspect of the design of such a facility. A theory for optimum arm design is outlined and a number of design charts based on this theory are presented. This study suggests that it is mechanically feasible to construct a rotating arm facility with a capability of Mach numbers up to about 8 over a range of pressure levels encompassing most of the low density flow regimes of interest. Although somewhat higher Mach numbers are theoretically possible, justification of the attendant increase in facility size and cost appears doubtful. Based on the theory and design data of this report, facilities with maximum capabilities of 4000 and 8000 ft/sec respectively are discussed. It is concluded that a facility of the 4000 ft/sec class could be designed by direct application of the present analysis. For the higher speed facility, however, analytical investigation and probably some related engineering development work would appear necessary. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1961
- Accession Number
- AD0275831
Entities
People
- E. Eggmann
- I. J. Billington
Organizations
- University of Toronto