Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid
In the present paper, turbulent convection of CuO-Water Nanofluid in a vertical channel is investigated numerically. In order to simulate the flow, the fluid is considered as a continuous phase while the discrete nanoparticles are dispersed through it. The dispersion of CuO nanoparticles in differen...
| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
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Isfahan University of Technology
2018-03-01
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| Series: | Ravish/hā-yi ̒adadī dar Muhandisī |
| Subjects: | |
| Online Access: | http://jcme.iut.ac.ir/browse.php?a_code=A-10-1-47&slc_lang=en&sid=1 |
| _version_ | 1819041397902147584 |
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| author | F. Bazdidi Tehrani S. I. Vasefi A. M. Anvari |
| author_facet | F. Bazdidi Tehrani S. I. Vasefi A. M. Anvari |
| author_sort | F. Bazdidi Tehrani |
| collection | DOAJ |
| description | In the present paper, turbulent convection of CuO-Water Nanofluid in a vertical channel is investigated numerically. In order to simulate the flow, the fluid is considered as a continuous phase while the discrete nanoparticles are dispersed through it. The dispersion of CuO nanoparticles in different flow conditions are studied in order to find the effective mechanisms of particles dispersion in the channel. The results show that in the fully developed turbulent convection flow, thermophoresis is more dominant than Brownian motion of nanoparticles and therefore the nanoparticles aggregation are more in the central areas of the channel. While in entrance region, where the boundary layer is not fully formed, the particles dispersion are more uniform. Also, an increase in the nanoparticles concentration will increase the turbulent velocity fluctuations in regions near the wall and this two-sided effect will cause improvement in turbulent flow thermal transmitance than the laminar flow. |
| first_indexed | 2024-12-21T09:24:21Z |
| format | Article |
| id | doaj.art-5f99e791e8294252a664f38e2a656904 |
| institution | Directory Open Access Journal |
| issn | 2228-7698 2423-5741 |
| language | fas |
| last_indexed | 2024-12-21T09:24:21Z |
| publishDate | 2018-03-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Ravish/hā-yi ̒adadī dar Muhandisī |
| spelling | doaj.art-5f99e791e8294252a664f38e2a6569042022-12-21T19:08:57ZfasIsfahan University of TechnologyRavish/hā-yi ̒adadī dar Muhandisī2228-76982423-57412018-03-013623547Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water NanofluidF. Bazdidi Tehrani0S. I. Vasefi1A. M. Anvari2 Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran In the present paper, turbulent convection of CuO-Water Nanofluid in a vertical channel is investigated numerically. In order to simulate the flow, the fluid is considered as a continuous phase while the discrete nanoparticles are dispersed through it. The dispersion of CuO nanoparticles in different flow conditions are studied in order to find the effective mechanisms of particles dispersion in the channel. The results show that in the fully developed turbulent convection flow, thermophoresis is more dominant than Brownian motion of nanoparticles and therefore the nanoparticles aggregation are more in the central areas of the channel. While in entrance region, where the boundary layer is not fully formed, the particles dispersion are more uniform. Also, an increase in the nanoparticles concentration will increase the turbulent velocity fluctuations in regions near the wall and this two-sided effect will cause improvement in turbulent flow thermal transmitance than the laminar flow.http://jcme.iut.ac.ir/browse.php?a_code=A-10-1-47&slc_lang=en&sid=1Nanofluid Turbulent convection Dispersion of particles. |
| spellingShingle | F. Bazdidi Tehrani S. I. Vasefi A. M. Anvari Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid Ravish/hā-yi ̒adadī dar Muhandisī Nanofluid Turbulent convection Dispersion of particles. |
| title | Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid |
| title_full | Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid |
| title_fullStr | Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid |
| title_full_unstemmed | Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid |
| title_short | Analysis of Particle Dispersion in Turbulent Mixed Convection of CuO-water Nanofluid |
| title_sort | analysis of particle dispersion in turbulent mixed convection of cuo water nanofluid |
| topic | Nanofluid Turbulent convection Dispersion of particles. |
| url | http://jcme.iut.ac.ir/browse.php?a_code=A-10-1-47&slc_lang=en&sid=1 |
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