HIGHLIGHTS
- who: Jan Koppelberg from the CEAS Aeronautical Journal have published the paper: Acoustic pre-design studies of ducted fans for small aircraft, in the Journal: (JOURNAL)
- what: Based on studies of the primary variables the paper discusses the physical sound generation phenomena as well as the interdisciplinary relationships of First the and analysis methods are described. To calculate this aerodynamic excitation, analytical and semi-empirical methods based on the work of Moreau are used. The aim of the studies is to determine the primary sound sources and the potential for noise reduction. The second goal . . .
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