Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method
In this paper, natural convection heat transfer in a closed square cavity with a hot triangular obstacle at temperature TH simulated by Finite Element Method. The top and the bottom walls are insulated while the left and the right walls are maintained at a constant temperature Tc (TH> Tc). The us...
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| Format: | Article |
| Language: | fas |
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Semnan University
2018-12-01
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| Series: | مجله مدل سازی در مهندسی |
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| Online Access: | https://modelling.semnan.ac.ir/article_3482_81a51939d038df968bba31190de9aa0d.pdf |
| _version_ | 1797296543146967040 |
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| author | Rasul Mohebbi |
| author_facet | Rasul Mohebbi |
| author_sort | Rasul Mohebbi |
| collection | DOAJ |
| description | In this paper, natural convection heat transfer in a closed square cavity with a hot triangular obstacle at temperature TH simulated by Finite Element Method. The top and the bottom walls are insulated while the left and the right walls are maintained at a constant temperature Tc (TH> Tc). The used method is validated against the existing numerical results and an excellent agreement between the results was found. The flow is assumed to be two-dimensional and air is chosen as a working fluid. The effect of different parameters such as Rayleigh number (Ra =103, 104, 105, 106), different position of obstacle inside cavity (H=L=0.1, 0.4, 0.7) and different angle of obstacle (θ'=00, 900, 1800, 2700) at different aspect ratio (AR =0.2, 0.4, 0.6, 0.8) on fluid flow and heat transfer inside the channel are investigated. The results showed that by increasing the Rayleigh number and increment of aspect ratio, the rate of heat transfer is increased. Also, enhancement the distance of obstacle from left and bottom walls of cavity, lead to decrement rate of heat transfer and the maximum values of mean Nusselt number are shown respectively at angles of 0, 90, 270, 180 degrees. |
| first_indexed | 2024-03-07T22:06:16Z |
| format | Article |
| id | doaj.art-861a60045f7a40b28af5fca44acc830b |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:06:16Z |
| publishDate | 2018-12-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-861a60045f7a40b28af5fca44acc830b2024-02-23T19:05:45ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382018-12-01165536137310.22075/jme.2018.6158.3482Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element MethodRasul Mohebbi0Assist. Prof., Mech. Eng., Damghan Univ., Damghan, Iran.In this paper, natural convection heat transfer in a closed square cavity with a hot triangular obstacle at temperature TH simulated by Finite Element Method. The top and the bottom walls are insulated while the left and the right walls are maintained at a constant temperature Tc (TH> Tc). The used method is validated against the existing numerical results and an excellent agreement between the results was found. The flow is assumed to be two-dimensional and air is chosen as a working fluid. The effect of different parameters such as Rayleigh number (Ra =103, 104, 105, 106), different position of obstacle inside cavity (H=L=0.1, 0.4, 0.7) and different angle of obstacle (θ'=00, 900, 1800, 2700) at different aspect ratio (AR =0.2, 0.4, 0.6, 0.8) on fluid flow and heat transfer inside the channel are investigated. The results showed that by increasing the Rayleigh number and increment of aspect ratio, the rate of heat transfer is increased. Also, enhancement the distance of obstacle from left and bottom walls of cavity, lead to decrement rate of heat transfer and the maximum values of mean Nusselt number are shown respectively at angles of 0, 90, 270, 180 degrees.https://modelling.semnan.ac.ir/article_3482_81a51939d038df968bba31190de9aa0d.pdftriangular obstaclefinite element methodnatural convectionsquare cavity |
| spellingShingle | Rasul Mohebbi Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method مجله مدل سازی در مهندسی triangular obstacle finite element method natural convection square cavity |
| title | Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method |
| title_full | Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method |
| title_fullStr | Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method |
| title_full_unstemmed | Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method |
| title_short | Natural Convection Fluid Flow and Heat Transfer a Square Cavity with a Heated Triangular Obstacle Using Finite Element Method |
| title_sort | natural convection fluid flow and heat transfer a square cavity with a heated triangular obstacle using finite element method |
| topic | triangular obstacle finite element method natural convection square cavity |
| url | https://modelling.semnan.ac.ir/article_3482_81a51939d038df968bba31190de9aa0d.pdf |
| work_keys_str_mv | AT rasulmohebbi naturalconvectionfluidflowandheattransferasquarecavitywithaheatedtriangularobstacleusingfiniteelementmethod |