Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow
In this research paper, irreversibility analysis of laminar forced convection flow in a duct with variable cross-section are numerically studied. Two-dimensional Cartesian coordinate system is used to solve the set of governing equations and also the blocked-off method is considered for simulation o...
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| Format: | Article |
| Language: | English |
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Islamic Azad University-Isfahan (Khorasgan) Branch
2018-09-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Subjects: | |
| Online Access: | https://admt.isfahan.iau.ir/article_668284_2e87c1888814ff6a94d8f12af9e2980d.pdf |
| _version_ | 1827791097054625792 |
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| author | Nasrin Aminzadeh Shima Sotoodehnia Meysam Atashafrooz |
| author_facet | Nasrin Aminzadeh Shima Sotoodehnia Meysam Atashafrooz |
| author_sort | Nasrin Aminzadeh |
| collection | DOAJ |
| description | In this research paper, irreversibility analysis of laminar forced convection flow in a duct with variable cross-section are numerically studied. Two-dimensional Cartesian coordinate system is used to solve the set of governing equations and also the blocked-off method is considered for simulation of the inclined surfaces. To obtain the velocity and temperature fields, the basic equations are numerically solved using the finite volume method and SIMPLE algorithm. To determine the flow irreversibility, the entropy generation number is calculated according to the thermodynamic second law. The geometrical effects of duct on the distributions of streamlines, friction coefficient, Nusselt number, entropy generation, and Bejan number are presented with details. The results show that the duct heights and inclination angle of surfaces have great effects on the flow irreversibility and the hydrodynamics and thermal behaviours. Also, comparison of the present numerical results with the available data published in the open literature shows an excellent consistency. |
| first_indexed | 2024-03-11T17:42:29Z |
| format | Article |
| id | doaj.art-0b664054d81f4289a04337b6476e28e8 |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:42:29Z |
| publishDate | 2018-09-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-0b664054d81f4289a04337b6476e28e82023-10-18T09:06:36ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472018-09-011132534668284Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated FlowNasrin Aminzadeh0Shima Sotoodehnia1Meysam Atashafrooz2Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, IranSirjan Branch. Islamic Azad University, Sirjan, Iran.Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, IranIn this research paper, irreversibility analysis of laminar forced convection flow in a duct with variable cross-section are numerically studied. Two-dimensional Cartesian coordinate system is used to solve the set of governing equations and also the blocked-off method is considered for simulation of the inclined surfaces. To obtain the velocity and temperature fields, the basic equations are numerically solved using the finite volume method and SIMPLE algorithm. To determine the flow irreversibility, the entropy generation number is calculated according to the thermodynamic second law. The geometrical effects of duct on the distributions of streamlines, friction coefficient, Nusselt number, entropy generation, and Bejan number are presented with details. The results show that the duct heights and inclination angle of surfaces have great effects on the flow irreversibility and the hydrodynamics and thermal behaviours. Also, comparison of the present numerical results with the available data published in the open literature shows an excellent consistency.https://admt.isfahan.iau.ir/article_668284_2e87c1888814ff6a94d8f12af9e2980d.pdfblocked-off methodconvection heat transferentropy generationflow irreversibilityvariable cross-section |
| spellingShingle | Nasrin Aminzadeh Shima Sotoodehnia Meysam Atashafrooz Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow International Journal of Advanced Design and Manufacturing Technology blocked-off method convection heat transfer entropy generation flow irreversibility variable cross-section |
| title | Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow |
| title_full | Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow |
| title_fullStr | Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow |
| title_full_unstemmed | Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow |
| title_short | Geometrical Effects of Duct on the Entropy Generation in the Laminar Forced Convection Separated Flow |
| title_sort | geometrical effects of duct on the entropy generation in the laminar forced convection separated flow |
| topic | blocked-off method convection heat transfer entropy generation flow irreversibility variable cross-section |
| url | https://admt.isfahan.iau.ir/article_668284_2e87c1888814ff6a94d8f12af9e2980d.pdf |
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