Abstract
Acoustic radiation of sound sources is a major problem in applied and industrial acoustics which affects many disciplines. This tool can be used for the optimization of these sources (types, distribution, etc.…). In industry, machines and processes are composed of various sources of noise such as rotors, stators, gears, fans, vibrating panels, circulation of turbulent fluid, impact processes, electrical machines, internal combustion engines, etc. To simplify the computation of the acoustic fields radiated from these sources; these ones can be simply modeled by elementary or punctual sources consisting in pulsing spheres. This allows the computation of the radiated acoustic field easily. In the context the proposed work in this paper presents the results of the simulation of the acoustic fields (the acoustic pressure, intensity and directivity) in the case of two and four elementary sources for different configurations (vertical and horizontal linear arrangements). The cases when sources are in phase or in phase opposition are studied. For each configuration, these fields are plotted and analyzed to understand the acoustic behavior of each one. The effect of the geometric distribution of the sources is analyzed also using the directivity which indicates the acoustic behavior of each studied case (isotropic, bipolar, quadripolar).
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Tounsi, D., Bedoui, M., Taktak, M., Karra, C., Haddar, M. (2022). Simulation of the Acoustic Fields and Directivities Radiated from a Set of Elementary Sources. In: Hammami, A., Heyns, P.S., Schmidt, S., Chaari, F., Abbes, M.S., Haddar, M. (eds) Modelling and Simulation of Complex Systems for Sustainable Energy Efficiency. MOSCOSSEE 2021. Applied Condition Monitoring, vol 20. Springer, Cham. https://doi.org/10.1007/978-3-030-85584-0_22
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DOI: https://doi.org/10.1007/978-3-030-85584-0_22
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