Identification of optimal design parameters for serrations and porous materials for noise reduction
C. Teruna
Dr. D. (Daniele) Ragni
Associate Professor
Dr. F. (Francesco) Avallone
Assistant Professor
The interaction between an airfoil and turbulent inflow is one of the most prominent source of noise, particularly In various aircraft propulsion system. Several noise mitigation techniques in the past have been proposed, such as serrations and permeable materials. Nevertheless, their working principles are relatively poorly understood, which prevents a robust application in industrial settings. Hence, the present project aims to elucidate the noise mitigation mechanisms, and eventually to identify the optimal design parameters of both noise reduction devices in order to allow for upscaling towards industrial applications.
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- Teruna, C., Ragni, D., Avallone, F. and Casalino, D., 2019. A rod-linear cascade model for emulating rotor-stator interaction noise in turbofans: A numerical study. Aerospace Science and Technology, 90, pp.275-288. DOI: 10.1016/j.ast.2019.04.047
- Teruna, C., Manegar F., Avallone, F., Ragni, D., Casalino, D., Carolus T., 2020. Noise reduction mechanisms of an open-cell metal-foam trailing edge. Journal of Fluid Mechanics, accepted for publication. DOI: 10.1017/jfm.2020.363
Christopher Teruna is a doctoral candidate within the Aeroacoustics research group of the Faculty of Aerospace Engineering, Delft University of Technology in the Netherlands. He completed his undergraduate study, majoring in aerospace Engineering, at Bandung Institute of Technology, Indonesia (2014). Afterward, he completed his M.S. in Aerospace Engineering from Korea Advanced Institute of Science and Technology, South Korea (2017). His current research interest is in aeroacoustics of turbulence impingement noise (TIN).
Daniele Ragni graduated in Thermo-Mechanical Engineering at the Polytechnic University of Marche (2007). Obtained the Ph.D. in 2012 (Faculty of Aerospace Engineering TU Delft) and joined TU Delft at the section of Wind Energy in the AWEP Department in the same year.
Francesco Avallone studied Aerospace Engineering at the University of Naples Federico II where he obtained also the PhD. His research interest focus on application of computational aeroacoustics to investigate the noise generation mechanisms and noise reduction solutions for wind energy and aeronautical applications. He is currently working on acoustic liners, porous materials and urban wind turbines on projects sponsored by Clean Sky 2, NWO and AARC.
