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Control of Free Convection by Flexible Fins in a Square Cavity Containing a Heated Triangular Block Cover

Control of Free Convection by Flexible Fins in a Square Cavity Containing a Heated Triangular Block

Acta Mechanica et Automatica
Volume 19 (2025): Issue 3 (September 2025)
By: Said AZZI,  Belkacem BELKACEM,  Mohamed BOUZIT,  Mohamed BOUHAFS,  Atika BENCHERIF and  Imadeddine DEHIMI  
Open Access
|Sep 2025

Figures & Tables

Fig. 1.

Physical 2D model of our study

Fig. 2.

Comparison of the results of the contours of isotherms when Pr = 10 and Et = 1010 between the present study and the study of Mohammad Shahabady et al.

Fig. 3.

Comparison of the results of the streamlines when Pr = 10 and Et = 1010 between the present work and the work of Mohammad Shahabady et al.

Fig. 4.

Streamlines of the velocity when Et=5×109 and Et=1011 for different Rayleigh numbers

Fig. 5.

Isotherms for Et=5×109 and Et=1011 for different Rayleigh numbers

Fig. 6.

Cutlines for different regions of the cavity

Fig. 7.

Temperature profiles in the region L1 for multiples Rayleigh numbers and Et=5×109, Et=1011

Fig. 8.

Temperature profiles in L2 cutline for variating Rayleigh numbers and Et=5×109, Et=1011

Fig. 9.

Temperature profiles in L3 cutline for different Rayleigh numbers and Et=5×109, Et=1011

Fig. 10.

Temperature profiles in L4 cutline where Et=5×109, 1011 for different Ra

Fig. 11.

Velocity profiles in cutline L1 for different Rayleigh numbers and Et=5×109, Et=1011

Fig. 12.

Velocity profiles in cutline L2 for different Rayleigh numbers and Et=5×109, Et=1011

Fig. 13.

Velocity profiles in cutline L3 for different Rayleigh numbers and Et=5×109, Et=1011

Fig. 14.

Velocity profiles in cutline L4 for different Rayleigh numbers and Et=5×109, Et=1011

Fig. 15.

Variation of the average Nusselt number as a function of Ra for different Et values

The average Nusselt number for variety of elements number

Number of elements11128139121725468554981
Average Nusselt number4,39884,80614,89054,98294,9829
DOI: https://doi.org/10.2478/ama-2025-0057 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088
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Language: English
Page range: 496 - 504
Submitted on: Jan 6, 2025
|
Accepted on: Sep 18, 2025
|
Published on: Sep 30, 2025
Published by: Bialystok University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
natural convection,
FSI,
heat transfer,
square cavity,
FEM
Related subjects:
Engineering,
Electrical engineering,
Electronics,
Mechanical engineering,
Mechanics,
Bioengineering and biomedical engineering,
Biomechanics,
Civil engineering,
Environmental engineering

© 2025 Said AZZI, Belkacem BELKACEM, Mohamed BOUZIT, Mohamed BOUHAFS, Atika BENCHERIF, Imadeddine DEHIMI, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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