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Technical Note
Online Published: 22 May 2025
 


Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney

Mahmoud Kalfali, Mouna Maache Battira, Nourredine Belghar, Chihab Eddine Brahmi.


Abstract
This study investigates the numerical simulation of mixed convection within a two-dimensional cavity shaped like a solar chimney in a home configuration. The primary goal is to investigate airflow and heat transfer effects to optimize solar chimney performance for residential applications. The analysis incorporates various parameters, such as Richardson (Ri) and Reynolds (Re) numbers, along with two distinct ventilation inlet positions: Case 1 at (x=0, y=0.9) and Case 2 at (x=0, y=0.1). Simulations are performed using a numerical code based on the Galerkin finite element method and the Boussinesq approximation. The findings suggest that an upper ventilation location significantly enhances airflow circulation and improves heat transfer by 20% compared to lower ventilation. For Ri values within 2.5≤Ri<5, forced convection is predominant, accelerating airflow velocity by 35%. In contrast, at Ri=10, natural convection takes over, creating a 40% higher thermal gradient. Additionally, an increase in Reynolds number from 100 to 500 results in a 25% improvement in convective heat transfer. Lastly, the solar chimney configuration boosts ventilation efficiency by 30%, underscoring its potential to enhance indoor air quality in residential buildings.


 
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How to Cite this Article
Pubmed Style

Kalfali M, Battira MM, Belghar N, Brahmi CE. Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Sol. Energy Sustain. Dev.. 2025; 14(1): 448-463.

doi:10.51646/jsesd.v14i1.467

Web Style

Kalfali M, Battira MM, Belghar N, Brahmi CE. Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. https://www.jsesd.org/?mno=302658355 [Access: November 12, 2026].

doi:10.51646/jsesd.v14i1.467

AMA (American Medical Association) Style

Kalfali M, Battira MM, Belghar N, Brahmi CE. Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Sol. Energy Sustain. Dev.. 2025; 14(1): 448-463.


doi:10.51646/jsesd.v14i1.467

Vancouver/ICMJE Style

Kalfali M, Battira MM, Belghar N, Brahmi CE. Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Sol. Energy Sustain. Dev.. (2025), [cited November 12, 2026]; 14(1): 448-463.


doi:10.51646/jsesd.v14i1.467

Harvard Style

Kalfali, M., Battira, . M. M., Belghar, . N. & Brahmi, . C. E. (2025) Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Sol. Energy Sustain. Dev., 14 (1), 448-463.


doi:10.51646/jsesd.v14i1.467

Turabian Style

Kalfali, Mahmoud, Mouna Maache Battira, Nourredine Belghar, and Chihab Eddine Brahmi. 2025. Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Solar Energy and Sustainable Development, 14 (1), 448-463.


doi:10.51646/jsesd.v14i1.467

Chicago Style

Kalfali, Mahmoud, Mouna Maache Battira, Nourredine Belghar, and Chihab Eddine Brahmi. "Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney." Solar Energy and Sustainable Development 14 (2025), 448-463.


doi:10.51646/jsesd.v14i1.467

MLA (The Modern Language Association) Style

Kalfali, Mahmoud, Mouna Maache Battira, Nourredine Belghar, and Chihab Eddine Brahmi. "Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney." Solar Energy and Sustainable Development 14.1 (2025), 448-463. Print.


doi:10.51646/jsesd.v14i1.467

APA (American Psychological Association) Style

Kalfali, M., Battira, . M. M., Belghar, . N. & Brahmi, . C. E. (2025) Numerical Investigation on Mixed Convection Phenomenon Within a 2D Cavity Shaped Home Containing Solar Chimney. Solar Energy and Sustainable Development, 14 (1), 448-463.


doi:10.51646/jsesd.v14i1.467

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