Effects of Geometric Parameters of Perforated Diffuser on Sound Pressure Level Sourced By Airflow

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dc.contributor.authorErdoğan, Ahmet
dc.contributor.authorAksoy, İshak Gökhan
dc.contributor.authorCanbazoğlu, Suat
dc.date.accessioned2024-08-04T19:42:51Z
dc.date.available2024-08-04T19:42:51Z
dc.date.issued2024
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThis study investigates the aeroacoustic behaviors of a square truncated perforated diffuser under airflow, commonly used in Air Handling Units (AHUs). The design parameters are fundamentally taken into account to unveil the aeroacoustic performance of the diffuser. Initially, unsteady-state Computational Fluid Dynamics (CFD) simulations are conducted based on models that accurately represent the fluid domain of the chamber with the perforated diffuser in the ANSYS Fluent environment. Subsequently, the Ffowcs Williams and Hawkings (FW-H) method integrated into the software is employed to acquire time-dependent signals from microphones placed in three different locations within a perforated diffuser chamber. Finally, the results are converted to a frequency range of 0-1000 Hz using the Fast Fourier Transform (FFT) method, and the SPL values are obtained. The results show that the microphone location is crucially important to determine SPL and the porosity reduction from 0.55 to 0.35 can reduce SPL by approximately 30-40 dB. Variations in wall thickness of the diffuser fluctuated between 5-10 dB at each frequency value.en_US
dc.identifier.doi10.34248/bsengineering.1421571
dc.identifier.endpage276en_US
dc.identifier.issn2619-8991
dc.identifier.issue2en_US
dc.identifier.startpage271en_US
dc.identifier.trdizinid1227994en_US
dc.identifier.urihttps://doi.org/10.34248/bsengineering.1421571
dc.identifier.urihttps://search.trdizin.gov.tr/yayin/detay/1227994
dc.identifier.urihttps://hdl.handle.net/11616/88759
dc.identifier.volume7en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofBlack Sea Journal of Engineering and Scienceen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleEffects of Geometric Parameters of Perforated Diffuser on Sound Pressure Level Sourced By Airflowen_US
dc.typeArticleen_US

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