Airblast Experiments for the M-X Spur.
Abstract
A series of experiments was performed in the NASA Ames Electric Arc Shock Tube to investigate the propagation of strong waves (p approximately 40 BARS) in a model of the M-X Spur. The experiments were designed to measure incident and reflected shock pressures to provide a basis for the development of computer models for analysis of blast wave propagation in the M-X Spur. Since the M-X Spur is an asymmetric design, separate experiments were performed for flow by the Spur and flow into the Spur. Initial and reflected shock pressures were recorded at several key locations in the model. The pressure loading on the model blast door was nonuniform along the door and was similar for loading from either direction. The maximum pressure on the blast door (P approximately 80 BARS) occurred at the narrow portion of the Spur. The highest pressures in the model (P approximately 130 BARS) occurred on the end of the turnout for flow into the Spur. Two dimensional flowfield calculations were performed by TRW and Systems, Science and Software for flowfields related to the present tests. Favorable comparisons with measurements were obtained for flow by the Spur. Calculations for flow into the Spur did not compare well with the test data demonstrating the effect of late time flows for this orientation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1978
- Accession Number
- ADA085580
Entities
People
- James E. Craig