Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity

Analyzing the double diffusive mixed convection inside a triangular enclosure with moving lid and involving a wavy porous cylinder emitting a concentration is addressed in this paper. Such a problem simulates various processes such as crystallization, absorption, and distillation where both heat and...

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Main Authors: Duna T. Yaseen, Amani J. Majeed, Sahib S. Ahmed, Muneer A. Ismael
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:International Journal of Thermofluids
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666202724004464
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author Duna T. Yaseen
Amani J. Majeed
Sahib S. Ahmed
Muneer A. Ismael
author_facet Duna T. Yaseen
Amani J. Majeed
Sahib S. Ahmed
Muneer A. Ismael
author_sort Duna T. Yaseen
collection DOAJ
description Analyzing the double diffusive mixed convection inside a triangular enclosure with moving lid and involving a wavy porous cylinder emitting a concentration is addressed in this paper. Such a problem simulates various processes such as crystallization, absorption, and distillation where both heat and mass transfer are involved. The horizontal wall of the lid-driven cavity maintains a constant temperature, while the inclined walls of the triangle cavity are thermally insulated. The wavy wall of the inner porous cylinder releases a constant species and kept colder than the moving wall. This study presents a novel way for improving heat transmission from a surface utilizing porous cylinders. Using a porous cylinder with e porosity can improve the performance of heat transfer. The governing equations are transformed to a non-dimensional form and solved with the finite element method. The study examines how porosity (ε), Darcy number (Da), undulation number (N), and wave amplitude (A) affect fluid flow, heat transfer and concentration distribution. More improvement in the porous cylinder performance is discovered to be possible with increasing (ε), (N), (Ri), and (Re), particularly at large (Da) levels. It is discovered that the average Nusselt number rises by the porous cylinder wall's waviness. The results indicate that in certain cases, increasing N from 1 to 5 raises the Nusselt number by 6 % while increasing the Darcy number from 10−3 to 10−2 could improve convective heat transmission in the liquid by 7.5 %.
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publishDate 2025-01-01
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series International Journal of Thermofluids
spelling doaj-art-491df4a4d1a74bbaaca44d4e37ab69b52025-01-08T04:53:35ZengElsevierInternational Journal of Thermofluids2666-20272025-01-0125101007Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavityDuna T. Yaseen0Amani J. Majeed1Sahib S. Ahmed2Muneer A. Ismael3Department of Mechanical Power Techniques, Basra Technical Institute, Southern Technical University, IraqPetroleum Engineering Department, Collage of Engineering, University of Basrah, Iraq; Corresponding author.Department of mechanical engineering, faculty of engineering, University of Kufa, Najaf IraqMechanical Engineering Department, Engineering Collage, University of Basrah, Iraq; College of Engineering, University of Warith Al-Anbiyaa, Karbala, IraqAnalyzing the double diffusive mixed convection inside a triangular enclosure with moving lid and involving a wavy porous cylinder emitting a concentration is addressed in this paper. Such a problem simulates various processes such as crystallization, absorption, and distillation where both heat and mass transfer are involved. The horizontal wall of the lid-driven cavity maintains a constant temperature, while the inclined walls of the triangle cavity are thermally insulated. The wavy wall of the inner porous cylinder releases a constant species and kept colder than the moving wall. This study presents a novel way for improving heat transmission from a surface utilizing porous cylinders. Using a porous cylinder with e porosity can improve the performance of heat transfer. The governing equations are transformed to a non-dimensional form and solved with the finite element method. The study examines how porosity (ε), Darcy number (Da), undulation number (N), and wave amplitude (A) affect fluid flow, heat transfer and concentration distribution. More improvement in the porous cylinder performance is discovered to be possible with increasing (ε), (N), (Ri), and (Re), particularly at large (Da) levels. It is discovered that the average Nusselt number rises by the porous cylinder wall's waviness. The results indicate that in certain cases, increasing N from 1 to 5 raises the Nusselt number by 6 % while increasing the Darcy number from 10−3 to 10−2 could improve convective heat transmission in the liquid by 7.5 %.http://www.sciencedirect.com/science/article/pii/S2666202724004464Mixed convectionLid – driven cavityWavy porous cylinderDarcy–Brinkman model
spellingShingle Duna T. Yaseen
Amani J. Majeed
Sahib S. Ahmed
Muneer A. Ismael
Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
International Journal of Thermofluids
Mixed convection
Lid – driven cavity
Wavy porous cylinder
Darcy–Brinkman model
title Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
title_full Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
title_fullStr Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
title_full_unstemmed Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
title_short Impact of a wavy wall triangular porous cylinder on diffusive-mixed convection in a lid-driven triangular cavity
title_sort impact of a wavy wall triangular porous cylinder on diffusive mixed convection in a lid driven triangular cavity
topic Mixed convection
Lid – driven cavity
Wavy porous cylinder
Darcy–Brinkman model
url http://www.sciencedirect.com/science/article/pii/S2666202724004464
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AT sahibsahmed impactofawavywalltriangularporouscylinderondiffusivemixedconvectioninaliddriventriangularcavity
AT muneeraismael impactofawavywalltriangularporouscylinderondiffusivemixedconvectioninaliddriventriangularcavity