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Forced Convection Heat Dissipation from Pin Fin Heat Sinks Modified by Rings and Circular Perforation Cover

Forced Convection Heat Dissipation from Pin Fin Heat Sinks Modified by Rings and Circular Perforation

Acta Mechanica et Automatica
Volume 19 (2025): Issue 1 (March 2025)
By: Karima Alem,  Djamel Sahel,  Warda Boudaoud and  Redouane Benzeguir  
Open Access
|Mar 2025

Figures & Tables

Fig. 1.

General illustration and dimensions (in mm) of air flow channel heat sink
General illustration and dimensions (in mm) of air flow channel heat sink

Fig. 2.

Detailed dimensions (in mm) of different heat sink configurations
Detailed dimensions (in mm) of different heat sink configurations

Fig. 3.

Example of generated tetrahedral mesh, Case 4
Example of generated tetrahedral mesh, Case 4

Fig. 4.

Test of grid independence for CPFs
Test of grid independence for CPFs

Fig. 5.

Validation of results for CPFs
Validation of results for CPFs

Fig. 6.

Velocity streamline distribution (m/s) for a) case 0 b) and case 4 at Re=22060
Velocity streamline distribution (m/s) for a) case 0 b) and case 4 at Re=22060

Fig. 7.

Contours of local temperature distribution (K) for a) case 0 b) and case 4 at Re=22060
Contours of local temperature distribution (K) for a) case 0 b) and case 4 at Re=22060

Fig. 8.

Variation of Nusselt number (Nu) versus Reynolds number (Re)
Variation of Nusselt number (Nu) versus Reynolds number (Re)

Fig. 9.

Variation of thermal resistance (Rth) versus Reynolds number (Re)
Variation of thermal resistance (Rth) versus Reynolds number (Re)

Fig. 10.

Variation of pressure difference (Δp) versus Reynolds number
Variation of pressure difference (Δp) versus Reynolds number

Fig. 11.

Variation of pumping power (PP) versus Reynolds number (Re)
Variation of pumping power (PP) versus Reynolds number (Re)

Fig. 12.

Variation of thermal resistance (η) versus Reynolds number (Re)
Variation of thermal resistance (η) versus Reynolds number (Re)

Fig. 13.

Variation of the hydrothermal performance factor (η) versus contact surface (AC)
Variation of the hydrothermal performance factor (η) versus contact surface (AC)
DOI: https://doi.org/10.2478/ama-2025-0014 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088
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Language: English
Page range: 117 - 125
Submitted on: Jun 15, 2024
Accepted on: Sep 2, 2024
Published on: Mar 31, 2025
Published by: Bialystok University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Heat sink,
heat dissipation,
perforated space,
pin fins,
ring
Related subjects:
Engineering,
Electrical engineering,
Electronics,
Mechanical engineering,
Mechanics,
Bioengineering and biomedical engineering,
Biomechanics,
Civil engineering,
Environmental engineering

© 2025 Karima Alem, Djamel Sahel, Warda Boudaoud, Redouane Benzeguir, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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