THE INFLUENCE OF WIND TUNNEL FLOW DISTRIBUTION AND TURBULENCE ON THE MEASUREMENT OF MAGNUS FORCES.
Abstract
A series of Magnus tests were carried out in a 4 ft. supersonic unitary tunnel at Mach numbers 1.5 and 2.0 and compared with Magnus tests run on the same model in a 13 in x 15 in supersonic tunnel. The tests show that the greater turbulence and flow variations in the 4 ft. tunnel test region influence the Magnus data so that the data are accurate only 10% to 15%. Flow variations over longer models will undoubtedly be greater and the inaccuracy of Magnus data will also be greater. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1969
- Accession Number
- AD0688601
Entities
People
- Anders S. Platou
Organizations
- Ballistic Research Laboratory