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Correlation of puma airloads: evaluation of cfd prediction methods
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miller, Judith Jones, Alan Desopper, Andre Strawn, Roger C. |
| Copyright Year | 1989 |
| Description | A cooperative program was undertaken by research organizations in England, France, Australia and the U.S. to study the capabilities of computational fluid dynamics codes (CFD) to predict the aerodynamic loading on helicopter rotor blades. The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades. Two topics are studied. First, computed results from three CFD codes are compared for flight test cases where all three codes use the same partial inflow-angle boundary conditions. Second, one of the CFD codes (FPR) is iteratively coupled with the CAMRAD/JA helicopter performance code. These results are compared with experimental data and with an uncoupled CAMRAD/JA solution. The influence of flow field unsteadiness is found to play an important role in the blade aerodynamics. Alternate boundary conditions are suggested in order to properly model this unsteadiness in the CFD codes. |
| File Size | 1331070 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890019127 |
| Archival Resource Key | ark:/13960/t6935r173 |
| Language | English |
| Publisher Date | 1989-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Flight Tests Blade Tips Computational Fluid Dynamics Unsteady Aerodynamics Flow Distribution Performance Prediction Rotor Aerodynamics Helicopter Performance Rotary Wings Aerodynamic Loads Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
