Full scale propeller tests are extremely expensive and limited by the availability of large high speed tunnels. The use of models is an alternative, and considerable experience has been obtained from recent British programmes involving small models, the design and construction of which, including the use of composite materials, are discussed. A series of performance tests carried out on a model in a variable density tunnel at flight Mach. numbers, with measurements errors of less than plus/minus 1.0 % provided some observation of the influence of Reynolds number. The lowerspeed results, compared with full scale tunnel data, after correction for scale effects, showed very close agreement. Samples of results from another comparative test programme are included showing similar agreement both aerodynamic and acoustic.
Techniques of model propeller testing
Verfahren zur Modellerprobung von Luftschrauben
SAE-Papers ; 1-10
1983
10 Seiten, 12 Bilder, 2 Quellen
Aufsatz (Konferenz)
Englisch
Techniques of Model Propeller Testing
SAE Technical Papers | 1983
|Engineering Index Backfile | 1909
Propeller flow visualization techniques
NTRS | 1982
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