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Buoyancy-Driven Flow and Forced Flow of Complex Fluid Within a Triangular Chamber with a Rotating Body Cover

Buoyancy-Driven Flow and Forced Flow of Complex Fluid Within a Triangular Chamber with a Rotating Body

Acta Mechanica et Automatica
Volume 19 (2025): Issue 2 (June 2025)
By: Youcef LAKAHAL and  Houssem LAIDOUDI  
Open Access
|Jun 2025

Figures & Tables

Fig. 1.

Diagrammatic representation of the problem

Fig. 2.

The structure of the grid used for the calculations

Fig. 3.

Residual Convergence for Re = 5, Ri = 0, n = 0.6 and β = 0.12

Fig. 4.

Validation tests

Fig. 5.

Streamlines for the case of blockage ratio of 0.12 at Re = 5

Fig. 6.

Streamlines for the case of blockage ratio of 0.12 at Re = 10

Fig. 7.

Isotherms for the case of blockage ratio of 0.12 at Re = 5

Fig. 8.

Isotherms for the case of blockage ratio of 0.12 at Re = 10

Fig. 9.

Values of Nu versus Ri and n: a) for Re = 1; b) Re = 5; and c) Re = 10

Fig. 10.

Streamlines for the case of blockage ratio of 0.24 at Re = 10

Fig. 11.

Isotherms for the case of blockage ratio of 0.24 at Re = 10

Fig. 12.

Values of Nu versus Ri and n: a) for Re = 1; b) Re = 5; and c) Re = 10

Fig. 13.

Streamlines for the case of blockage ratio of 0.36 at Re = 10

Fig. 14.

Isotherms for the case of blockage ratio of 0.36 at Re = 10

Fig. 15.

Values of Nu versus Ri and n: a) for Re = 1; b) Re = 5; and c) Re = 10

Fig. 16.

Values of Nu with Ri for the three cases at Re = 10 and n = 0.6

Grid independency test for n = 1_6, Re = 10, Ri = 2 and β = 0_12

MeshElementsNuDifference %CPU Seconds
M1130,0003.419301.478622
M2260,0003.368760.0111021
M3520,0003.36913--
DOI: https://doi.org/10.2478/ama-2025-0027 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088
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Language: English
Page range: 224 - 240
Submitted on: Oct 13, 2024
|
Accepted on: Feb 10, 2025
|
Published on: Jun 6, 2025
Published by: Bialystok University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Complex fluid,
mixed convection,
blockage ratio,
numerical investigation,
Nusselt number,
CFD
Related subjects:
Engineering,
Electrical engineering,
Electronics,
Mechanical engineering,
Mechanics,
Bioengineering and biomedical engineering,
Biomechanics,
Civil engineering,
Environmental engineering

© 2025 Youcef LAKAHAL, Houssem LAIDOUDI, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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