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Some experiments related to l-star instability in rocket motors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McNamara, R. P. Kumar, R. N. |
| Copyright Year | 1973 |
| Description | The role of solid phase heterogeneity on the low-pressure L-star instability of nonmetallized AP/PBAN propellants is explored. Four particle size distributions are employed in propellants that are otherwise identical. Over one hundred test firings were conducted in the 21/2 in. diameter L-star burner. Pressure time histories in the chamber and color movies of two firings constitute the raw data. An economical firing program was used which enables the interesting range of L-star values to be covered during a single firing (at a set mean pressure), through the variations in the depleting propellant volume. Time-independent combustion, Helmholtz mode, chuff mode, and the pressure-burst phenomena are revealed as the principal signatures. Of these, the Helmholtz mode is found to be the most ordered form of instability. |
| File Size | 45925680 |
| Page Count | 111 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730025002 |
| Archival Resource Key | ark:/13960/t7gr1pd91 |
| Language | English |
| Publisher Date | 1973-03-01 |
| Access Restriction | Open |
| Subject Keyword | Propellants Heterogeneity Combustion Stability Solid Rocket Propellants Propellant Properties Oscillations Test Firing Propellant Combustion Solid Phases Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
