Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow
In this paper, the modeling of a steady state two phase flow heated through a vertical upward flow under electro-magneto-hydro-dynamic forces is presented. The thermal non-equilibrium, non-homogeneous, two-phase flow model consisting of mass, momentum and energy conservation in each phase has been a...
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MDPI AG
2016-08-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/8/657 |
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doaj-a2afcd73ab24473cab24d852e062c8952020-11-24T23:41:26ZengMDPI AGEnergies1996-10732016-08-019865710.3390/en9080657en9080657Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward FlowMojtaba Mirzaee0Payam Hooshmand1Hamed Ahmadi2Hassan Kavoosi Balotaki3HamidReza KhakRah4Mohammad Yaghoub Abdollahzadeh Jamalabadi5Young Researchers and Elite Club, Omidiyeh Branch, Islamic Azad University, Omidiyeh 6373193719, IranDepartment of Mechanical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj 6616935391, IranDepartment of Energy Engineering, Faculty of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran 1477893855, IranDepartment of Mechanical Engineering, Izeh Branch, Islamic Azad University, Izeh 6391997699, IranDepartment of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz 7473171987, IranDepartment of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, 30 Pildong-ro 1gil, Jung-gu, Seoul 04620, KoreaIn this paper, the modeling of a steady state two phase flow heated through a vertical upward flow under electro-magneto-hydro-dynamic forces is presented. The thermal non-equilibrium, non-homogeneous, two-phase flow model consisting of mass, momentum and energy conservation in each phase has been adjusted for subcooled inlet conditions close to saturation. The P-1 approximation, viscous dissipation and Joule heating are included in the energy equations. It was seen that the Lorentz force can decrease and postpone the bubble generation, as well as affect the slip velocity, flow forces, viscous dissipation and Joule heating. Furthermore, two correlations for the slip velocity under magnetohydrodynamic (MHD) forces are presented. As shown, skin friction and Joule heating increase with the magnetic field strength.http://www.mdpi.com/1996-1073/9/8/657electromagnetohydrodynamicnon-homogeneousJoule heatingnon-equilibrium two-phase flowthermal radiationP-1 approximationLorentz forcevertical tube |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Mojtaba Mirzaee Payam Hooshmand Hamed Ahmadi Hassan Kavoosi Balotaki HamidReza KhakRah Mohammad Yaghoub Abdollahzadeh Jamalabadi |
| spellingShingle |
Mojtaba Mirzaee Payam Hooshmand Hamed Ahmadi Hassan Kavoosi Balotaki HamidReza KhakRah Mohammad Yaghoub Abdollahzadeh Jamalabadi Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow Energies electromagnetohydrodynamic non-homogeneous Joule heating non-equilibrium two-phase flow thermal radiation P-1 approximation Lorentz force vertical tube |
| author_facet |
Mojtaba Mirzaee Payam Hooshmand Hamed Ahmadi Hassan Kavoosi Balotaki HamidReza KhakRah Mohammad Yaghoub Abdollahzadeh Jamalabadi |
| author_sort |
Mojtaba Mirzaee |
| title |
Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow |
| title_short |
Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow |
| title_full |
Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow |
| title_fullStr |
Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow |
| title_full_unstemmed |
Electromagnetohydrodynamic Effects on Steam Bubble Formation in Vertical Heated Upward Flow |
| title_sort |
electromagnetohydrodynamic effects on steam bubble formation in vertical heated upward flow |
| publisher |
MDPI AG |
| series |
Energies |
| issn |
1996-1073 |
| publishDate |
2016-08-01 |
| description |
In this paper, the modeling of a steady state two phase flow heated through a vertical upward flow under electro-magneto-hydro-dynamic forces is presented. The thermal non-equilibrium, non-homogeneous, two-phase flow model consisting of mass, momentum and energy conservation in each phase has been adjusted for subcooled inlet conditions close to saturation. The P-1 approximation, viscous dissipation and Joule heating are included in the energy equations. It was seen that the Lorentz force can decrease and postpone the bubble generation, as well as affect the slip velocity, flow forces, viscous dissipation and Joule heating. Furthermore, two correlations for the slip velocity under magnetohydrodynamic (MHD) forces are presented. As shown, skin friction and Joule heating increase with the magnetic field strength. |
| topic |
electromagnetohydrodynamic non-homogeneous Joule heating non-equilibrium two-phase flow thermal radiation P-1 approximation Lorentz force vertical tube |
| url |
http://www.mdpi.com/1996-1073/9/8/657 |
| work_keys_str_mv |
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