MEASUREMENTS OF FLOW BREAKDOWN IN RECTANGULAR WIND TUNNEL WORKING SECTIONS,
Abstract
The report describes an experimental investigation of the model lift coefficients required to cause flow breakdown in low speed wind tunnels having test section breadth-to-height ratios of 0.5, 1.0, and 2.0. A family of jet flap wing models was used in the investigation. The model height-to-span, the momentum-area-to-tunnel area, and the model drag-to-lift ratios were varied. Flow breakdown is shown to be primarily a function of the drag-to-lift ratio and a lift coefficient based upon the measured dynamic pressure, measured lift, and the tunnel cross-sectional area beneath the model span. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- AD0684711
Entities
People
- P. South
Organizations
- National Research Council Canada