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

Youcef LAKAHAL

Youcef LAKAHAL

Faculty of Mechanical Engineering, University of Sciences and Technology of OranEl-Menaouer, Oran, Algeria
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LAKAHAL, Youcef
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Houssem LAIDOUDI

Houssem LAIDOUDI

Faculty of Mechanical Engineering, University of Sciences and Technology of OranEl-Menaouer, Oran, Algeria
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LAIDOUDI, Houssem
  
Jun 06, 2025
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Published Online: Jun 06, 2025
Page range: 224 - 240
Received: Oct 13, 2024
Accepted: Feb 10, 2025
DOI: https://doi.org/10.2478/ama-2025-0027
Keywords
© 2025 Youcef LAKAHAL et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

Diagrammatic representation of the problem
Diagrammatic representation of the problem

Fig. 2.

The structure of the grid used for the calculations
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
Residual Convergence for Re = 5, Ri = 0, n = 0.6 and β = 0.12

Fig. 4.

Validation tests
Validation tests

Fig. 5.

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

Mesh Elements Nu Difference % CPU Seconds
M1 130,000 3.41930 1.478 622
M2 260,000 3.36876 0.011 1021
M3 520,000 3.36913 - -
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Engineering, Electrical Engineering, Electronics, Mechanical Engineering, Mechanics, Bioengineering and Biomedical Engineering, Biomechanics, Civil Engineering, Environmental Engineering
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