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Dynamic response of cavitating turbomachines
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ng, S. L. |
| Copyright Year | 1976 |
| Description | Stimulated by the pogo instability encountered in many liquid propellant rockets, the dynamic behavior of cavitating inducers is discussed. An experimental facility where the upstream and downstream flows of a cavitating inducer could be perturbed was constructed and tested. The upstream and downstream pressure and mass flow fluctuations were measured. Matrices representing the transfer functions across the inducer pump were calculated from these measurements and from the hydraulic system characteristics for two impellers in various states of cavitation. The transfer matrices when plotted against the perturbing frequency showed significant departure from steady state or quasi-steady predictions especially at higher frequencies. |
| File Size | 5655336 |
| Page Count | 208 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770003597 |
| Archival Resource Key | ark:/13960/t2b902119 |
| Language | English |
| Publisher Date | 1976-08-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Dynamic Response Test Facilities Turbulent Flow Mass Flow Factors Pressure Oscillations Turbomachinery Cavitation Flow Intake Systems 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 |
