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Mitigation of vibration and free-surface instabilities by using anti-vortex baffles in an industrial stirred vessel

Author

Listed:
  • Zine El Abidine Bouhzila

    (Laboratory of Maritime Sciences and Engineering, Department of Maritime Engineering, University of Science and Technology of Oran — Mohammed Boudiaf, P. O. Box 1505, El-M’Naouer 31000, Oran, Algeria)

  • Morad Belharizi

    (��Development Division, Sonatrach, P. O. Box 58, City of Arzew 31200, Oran, Algeria‡Laboratory of Aeronautics and Propulsion Systems, Department of Mechanical Engineering, University of Science and Technology of Oran — Mohammed Boudiaf, P. O. Box 1505, El-M’Naouer 31000, Oran, Algeria)

  • Omar Bentata

    (�Laboratory of Science Technology and Process Engineering, Department of Chemical Engineering, University of Science and Technology of Oran — Mohammed Boudiaf, P. O. Box 1505, El-M’Naouer 31000, Oran, Algeria)

  • Tayeb Yahiaoui

    (��Laboratory of Aeronautics and Propulsion Systems, Department of Mechanical Engineering, University of Science and Technology of Oran — Mohammed Boudiaf, P. O. Box 1505, El-M’Naouer 31000, Oran, Algeria)

  • Mohamed Bouzit

    (Laboratory of Maritime Sciences and Engineering, Department of Maritime Engineering, University of Science and Technology of Oran — Mohammed Boudiaf, P. O. Box 1505, El-M’Naouer 31000, Oran, Algeria)

Abstract

Inadequate understanding of mixing dynamics can result in compromised product quality, increased production expenses and revenue loss. This study utilizes vibrometer measurements in both baffled and unbaffled eccentric flat-bottomed stirring vessels, containing a trisodium phosphate–water mixture, to investigate the impact of baffles on reducing vibrations. Through examining the effect of different configurations of baffles, this research effectively eliminates vortices and vibrations generated during agitation, consequently reducing maintenance frequency. Additionally, computational fluid dynamics (CFD) analysis is conducted on baffled and unbaffled stirred tanks, revealing streamlined patterns and mean velocities. By solving the Reynolds-averaged Navier–Stokes (RANS) equations with the k–ε turbulence model, obtained results reveal the importance of baffles in reducing vibrations and vortices while stabilizing the free-surface. However, balancing the number of baffles with impeller blades is crucial to prevent vibration regeneration.

Suggested Citation

  • Zine El Abidine Bouhzila & Morad Belharizi & Omar Bentata & Tayeb Yahiaoui & Mohamed Bouzit, 2025. "Mitigation of vibration and free-surface instabilities by using anti-vortex baffles in an industrial stirred vessel," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 36(04), pages 1-17, April.
    • Handle: RePEc:wsi:ijmpcx:v:36:y:2025:i:04:n:s0129183124502073
    DOI: 10.1142/S0129183124502073
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