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Flow studies in close-coupled ventral nozzles for stovl aircraft
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smith, C. Frederic McArdle, Jack G. |
| Copyright Year | 1990 |
| Description | Flow in a generic ventral nozzle system was studied experimentally and analytically with the PARC3D computational fluid dynamics program in order to evaluate the program's ability to predict system performance and internal flow patterns. A generic model of a tailpipe with a rectangular ventral nozzle, about 1/3 of full size, was tested with unheated air at steady state pressure ratios up to 4.0. The end of the tailpipe was closed to simulate a blocked exhaust nozzle. Flow behavior into and through the ventral duct is discussed and illustrated with paint streak flow visualization photographs. PARC3D graphic images are shown for comparison with the experimental photographs. The program successfully predicted internal flow patterns; it also computed thrust and discharge coefficients within 1 pct. of measured values. |
| File Size | 970095 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920011691 |
| Archival Resource Key | ark:/13960/t3c013b1m |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Stovl Aircraft Computational Fluid Dynamics Aircraft Design Gas Pressure Streak Photography Steady State Computer Programs Navier-stokes Equation Internal Flow Exhaust Nozzles Flow Distribution Flow Visualization Pressure Ratio Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
