Particle Penetration into Pitot Gauges in Supersonic Dusty Flows,
Abstract
Pitot tube gauges located near the ground are used to measure dynamic pressure in large scale blast tests carried out on desert sites. The penetration of dust particles into the interiors of pitot tubes is studied. The particles are in equilibrium with supersonic airflows behind shock waves propagating into still air. This study is part of an overall effort to determine the effect produced by impact of small particles (e.g., dust raised in strong ground level explosions) on the output of sensors in total pressure gauges. Specifically, hemispherical nose and flat nose pitot tubes are treated, and shock waves traveling with Mach numbers ranging from 2.5 to 10.0 are considered. The corresponding overpressures vary from 6.1 to 115.5 atmospheres. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1973
- Accession Number
- AD0770428
Entities
People
- David B Chou
- Joan Bartos
- Nathan Gerber
- Raymond Sedney
Organizations
- Ballistic Research Laboratory