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Effects of splitter geometry as a passive control method on sound pressure level, a mathematical modeling

Author

Listed:
  • Amir Bagherzadeh

    (School of Mechanical Engineering, Isfahan University of Technology (IUT), Isfahan, Iran)

  • Forough Abbasi Parizad

    (Department of Mechanical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P. O. Box 91775-1111, Mashhad, Iran)

Abstract

This study investigates the aeroacoustics of flow around a square cylinder using an in-house OpenFoam solver with Ffowcs Williams’ Hawking methodology and the k − ω SST turbulence model. First, the numerical results were validated against experimental data. Then, the effects of a 1mm thick splitter with different lengths, 2.5 (L/D = 0.25), 5 (L/D = 0.5), 7.5 (L/D = 0.75) and 10 (L/D = 1), were studied as a passive control method. The findings indicate that the splitter suppresses the vortex shedding, a dipole source of aeroacoustic emission, resulting in a reduction of the noise level by up to 7% for L/D = 0.25, 9.7% for L/D = 0.5, 13.65% for L/D = 0.75 and 17.5% for L/D = 1.

Suggested Citation

  • Amir Bagherzadeh & Forough Abbasi Parizad, 2023. "Effects of splitter geometry as a passive control method on sound pressure level, a mathematical modeling," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 34(10), pages 1-16, October.
    • Handle: RePEc:wsi:ijmpcx:v:34:y:2023:i:10:n:s0129183123501395
    DOI: 10.1142/S0129183123501395
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