مورد إلكتروني
A sensitivity study on the effect of blade sweep on the trade-off between propeller efficiency and noise with panel method analysis
| العنوان: | A sensitivity study on the effect of blade sweep on the trade-off between propeller efficiency and noise with panel method analysis |
|---|---|
| المؤلفون: | Keil, Timo (author) |
| بيانات النشر: | 2021-10-27 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Due to increasing concerns on the environmental impact of aviation operations and rising fuel prices, there is renewed interest in propeller research. Although propellers can provide a step improvement in propulsive efficiency with respect to turbofan engines, they are generally associated with higher noise emissions. In this study, the effect of blade sweep on the trade-off between propeller efficiency and noise is investigated. A panel method was implemented to analyze the propeller aerodynamics, while a tonal far-field frequency formulation was used to analyze the propeller acoustics. It was concluded that the effect of blade sweep on the thickness noise for conventional propeller systems at a constant advance ratio is noticeable. A relation was found for the trade-off between propeller efficiency and noise. This relation shows that the sensitivity of noise reduction reduces as the maximum allowed efficiency penalty is increased. Aerospace Engineering |
| مصطلحات الفهرس: | master thesis |
| URL: | |
| الإتاحة: | Open access content. Open access content © 2021 Timo Keil |
| ملاحظة: | English |
| أرقام أخرى: | NLTUD oai:tudelft.nl:uuid:39e67ba0-3409-4069-be3e-f1f12443a9ff 1285164635 |
| المصدر المساهم: | DELFT UNIV OF TECHNOL From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1285164635 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |