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Analysis of combustion instability in liquid propellant engines with or without acoustic cavities
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schuman, M. D. Oberg, C. L. Warner II, C. Kesselring, R. C. |
| Copyright Year | 1974 |
| Description | Analytical studies have been made of the relative combustion stability of various propellant combinations when used with hardware configurations representative of current design practices and with or without acoustic cavities. Two combustion instability models, a Priem-type model and a modification of the Northern Research and Engineering (NREC) instability model, were used to predict the variation in engine stability with changes in operating conditions, hardware characteristics or propellant combination, exclusive of acoustic cavity effects. The NREC model was developed for turbojet engines but is applicable to liquid propellant engines. A steady-state combustion model was used to predict the needed input for the instability models. In addition, preliminary development was completed on a new model to predict the influence of an acoustic cavity with specific allowance for the effects the nozzle, steady flow and combustion. |
| File Size | 2752393 |
| Page Count | 111 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740023268 |
| Archival Resource Key | ark:/13960/t8tb5wc2f |
| Language | English |
| Publisher Date | 1974-06-01 |
| Access Restriction | Open |
| Subject Keyword | Thermodynamics And Combustion Cavities Acoustics Mathematical Models Gas Turbines Liquid Propellant Rocket Engines Combustion Stability 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 |
