EXPERIMENTAL DETERMINATION OF TRANSONIC AND SUPERSONIC PRESSURE DISTRIBUTION AND MASS FLOW ACCOMMODATION FOR RIBBON PARACHUTES DURING INFLATION. VOL. I--THE 27% GEOMETRIC POROSITY HEMISFLO RIBBON PARACHUTE.
Abstract
The measured mass flows are analyzed relative to free stream velocity and density ratio. The results are presented as ratios of measured to inviscid flow through the canopy inlet area, thus giving a measure of the canopy's ability to accommodate the air mass entering the parachute mouth. Related to the mass flow studies, was the determination of pressure distributions on the internal and external canopy surfaces. Measurements were made at Mach 0.8, 1.2, and 3.0. In addition, several tests were conducted using an ogive forebody at two upstream locations. The wake of the ogive forebody with respect to pressure is analyzed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0478627
Entities
People
- Keith J. Goar
- Ronald J. Niccum
- Warren W. Lenius
Organizations
- University of Minnesota