MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution
The free convection of Cu-water nanofluid is simulated and investigated inside a square heat exchanger chamber in the presence of MHD magnetic field. The Buongiorno model with the effects of Brownian and thermophoresis motion is considered to nanoparticles distribution inside the chamber. The geomet...
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Elsevier Ltd
2021
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| الوصول للمادة أونلاين: | http://eprints.utm.my/id/eprint/94528/1/HajarAlias2021_MhdNaturalConvectionNanofluid.pdf http://eprints.utm.my/id/eprint/94528/ http://dx.doi.org/10.1016/j.csite.2021.101394 |
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my.utm.945282022-03-31T15:46:58Z http://eprints.utm.my/id/eprint/94528/ MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution Cao, Yan Ayed, Hamdi Jarad, Fahd Togun, Hussein Alias, Hajar Issakhov, Alibek Dahari, Mahidzal Wae-hayee, Makatar El Ouni, Mohamed Hechmi TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology The free convection of Cu-water nanofluid is simulated and investigated inside a square heat exchanger chamber in the presence of MHD magnetic field. The Buongiorno model with the effects of Brownian and thermophoresis motion is considered to nanoparticles distribution inside the chamber. The geometry consists of a square chamber with two cylinders on the right and left sides as heater and cooler in order to create the buoyancy force, respectively. These cylinders represent hot and cold pipes, and the walls of the chamber are heat and mass insulation. the FVM with SIMPLE algorithm are used for velocity and pressure coupling. In current two-phase simulation, the effects of Rayleigh number, Hartmann number, inclination angle of chamber and volume fraction on streamline contours, isothermal lines, Lorentz force lines, nanoparticle distribution and Nusselt number are investigated. By modeling the motion of nanoparticles and evaluating it, a nanoparticle transport zone was observed. The diffusion effects of thermophoresis were significant in this zone. The nanoparticles were thrown from the hot cylinder to the cold cylinder. The application of a magnetic field enlarged the nanoparticle transport zone. However, increasing the Rayleigh number and decreasing the inclination angle of the enclosure caused the nanoparticles to disperse evenly. Elsevier Ltd 2021-12 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/94528/1/HajarAlias2021_MhdNaturalConvectionNanofluid.pdf Cao, Yan and Ayed, Hamdi and Jarad, Fahd and Togun, Hussein and Alias, Hajar and Issakhov, Alibek and Dahari, Mahidzal and Wae-hayee, Makatar and El Ouni, Mohamed Hechmi (2021) MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution. Case Studies in Thermal Engineering, 28 . pp. 1-12. ISSN 2214-157X http://dx.doi.org/10.1016/j.csite.2021.101394 DOI:10.1016/j.csite.2021.101394 |
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TJ Mechanical engineering and machinery TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology Cao, Yan Ayed, Hamdi Jarad, Fahd Togun, Hussein Alias, Hajar Issakhov, Alibek Dahari, Mahidzal Wae-hayee, Makatar El Ouni, Mohamed Hechmi MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| description |
The free convection of Cu-water nanofluid is simulated and investigated inside a square heat exchanger chamber in the presence of MHD magnetic field. The Buongiorno model with the effects of Brownian and thermophoresis motion is considered to nanoparticles distribution inside the chamber. The geometry consists of a square chamber with two cylinders on the right and left sides as heater and cooler in order to create the buoyancy force, respectively. These cylinders represent hot and cold pipes, and the walls of the chamber are heat and mass insulation. the FVM with SIMPLE algorithm are used for velocity and pressure coupling. In current two-phase simulation, the effects of Rayleigh number, Hartmann number, inclination angle of chamber and volume fraction on streamline contours, isothermal lines, Lorentz force lines, nanoparticle distribution and Nusselt number are investigated. By modeling the motion of nanoparticles and evaluating it, a nanoparticle transport zone was observed. The diffusion effects of thermophoresis were significant in this zone. The nanoparticles were thrown from the hot cylinder to the cold cylinder. The application of a magnetic field enlarged the nanoparticle transport zone. However, increasing the Rayleigh number and decreasing the inclination angle of the enclosure caused the nanoparticles to disperse evenly. |
| format |
Article |
| author |
Cao, Yan Ayed, Hamdi Jarad, Fahd Togun, Hussein Alias, Hajar Issakhov, Alibek Dahari, Mahidzal Wae-hayee, Makatar El Ouni, Mohamed Hechmi |
| author_facet |
Cao, Yan Ayed, Hamdi Jarad, Fahd Togun, Hussein Alias, Hajar Issakhov, Alibek Dahari, Mahidzal Wae-hayee, Makatar El Ouni, Mohamed Hechmi |
| author_sort |
Cao, Yan |
| title |
MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| title_short |
MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| title_full |
MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| title_fullStr |
MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| title_full_unstemmed |
MHD natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| title_sort |
mhd natural convection nanofluid flow in a heat exchanger: effects of brownian motion and thermophoresis for nanoparticles distribution |
| publisher |
Elsevier Ltd |
| publishDate |
2021 |
| url |
http://eprints.utm.my/id/eprint/94528/1/HajarAlias2021_MhdNaturalConvectionNanofluid.pdf http://eprints.utm.my/id/eprint/94528/ http://dx.doi.org/10.1016/j.csite.2021.101394 |
| _version_ |
1729703184954294272 |
| score |
13.251813 |