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Low-Noise Airfoils for Turbomachinery Applications: Two Examples of Optimization
- Source :
- International Journal of Turbomachinery, Propulsion and Power, Vol 9, Iss 1, p 9 (2024)
- Publication Year :
- 2024
- Publisher :
- MDPI AG, 2024.
-
Abstract
- Automotive fans, small wind turbines, and manned and unmanned aerial vehicles (MAVs/UAVs) are just a few examples in which noise generated by the flow’s interaction with aerodynamic surfaces is a major concern. The current work shows the potential of a new airfoil shape to minimize noise generation, maintaining a high lift-to-drag ratio in a prescribed Reynolds regime. This investigation uses a multifidelity approach: a low-fidelity semiempirical model is exploited to evaluate the sound pressure level (SPL). Fast evaluation of a low-cost function enables the computation of a large range of possible profiles, and accuracy is added to the low-fidelity response surface with high-fidelity CFD data. The constraint of maintaining a predefined range of the lift coefficient and lift-to-drag ratio ensures the possibility of using this profile in usual design procedures.
Details
- Language :
- English
- ISSN :
- 2504186X
- Volume :
- 9
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- International Journal of Turbomachinery, Propulsion and Power
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.80adbe5ebf1b4a96bc54c2b907bb18ec
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/ijtpp9010009