Numerical Study of Vortex Dynamics and Power Consumption in Rushton Stirred Tanks with Vertical, Square, and Triangular Baffle

Mohammed Foukrach; Youcef Kamla; Mohamed Bouzit; Zied Driss

doi:10.65731/ama/2026-0047

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Numerical Study of Vortex Dynamics and Power Consumption in Rushton Stirred Tanks with Vertical, Square, and Triangular Baffle

Acta Mechanica et Automatica

Volume 20 (2026): Issue 2 (June 2026)

By: Mohammed Foukrach , Youcef Kamla , Mohamed Bouzit and Zied Driss

Open Access

|Jul 2026

Abstract

The present study numerically investigates the influence of different baffle types in a vessel stirred by a Rushton turbine. Three configurations were examined: a Rushton turbine combined with vertical baffles (VBR), square baffles (SBR), and triangular baffles (TBR). Turbulent flow simulations were performed for Reynolds numbers ranging from 4×10⁴ to 10⁵ using the Multiple Reference Frame (MRF) approach implemented in the CFD CFX 18.0. The vortex structure and power consumption were analyzed for each geometrical configuration. The results show that square baffles offer the best performance, with a reduction in power consumption of 2.85% compared to the triangular baffles (TBR) and 30% relative to the vertical baffles (VBR). Furthermore, for the SBR configuration, variations in baffle width (E/D) and baffle height (F/D) (tested at F/D = 9/40, 1/4, 4/15, and 3/10) indicate that tanks equipped with baffles having a ratio of E/D = 9/40 exhibit lower power consumption compared to the other configurations.

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Articles in this issue

DOI: https://doi.org/10.65731/ama/2026-0047 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088

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Language: English

Page range: 473 - 481

Submitted on: Dec 14, 2025

Accepted on: Feb 18, 2026

Published on: Jul 16, 2026

Published by: Bialystok University of Technology

In partnership with: Paradigm Publishing Services

Keywords:

baffles,

vortex,

Related subjects:

Mechanical engineering,

Mechanics,

Engineering,

Bioengineering and biomedical engineering,

Biomechanics,

Engineering,

Civil engineering,

Environmental engineering

© 2026 Mohammed Foukrach, Youcef Kamla, Mohamed Bouzit, Zied Driss, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 20 (2026): Issue 2 (June 2026)