| Issue |
E3S Web Conf.
Volume 321, 2021
XIII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2021)
|
|
|---|---|---|
| Article Number | 04020 | |
| Number of page(s) | 8 | |
| Section | Heat and Mass Transfert | |
| DOI | https://doi.org/10.1051/e3sconf/202132104020 | |
| Published online | 08 December 2021 | |
New Approach to Compute Accurately the Entropy Generation Due to Natural Convection in a Square Cavity
1
Faculty of Sciences and Applied Sciences, University of Larbi Ben M'hidi, Oum el Bouaghi, Algeria
2
Laboratory of Biotechnology, National Higher School of Biotechnology (ENSB), Constantine 3, Algeria
* Corresponding author: s.boudebous@gmail.com
The idea to carry out an exercise to compare the calculation of entropy generation for unsteady natural convection in a square cavity with vertical sides that are maintained at different temperatures was motived by the observation, in the literature, of inaccurate or often erroneous results concerning the values of this significant physical entity. It then appeared necessary to reconsider this problem in order to ensure its consistent assessment. The new approach that we propose allows a direct access to the value of the entropy generation by considering the exact values of the thermophysical properties of the working fluid, which depends on the Prandtl and the Rayleigh numbers.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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