Numerical investigation of the condensation of a rising bubble inside a subcooled liquid under magnetic field
| Autor: | Mousa Mohammadpourfard, Habib Aminfar, Sajjad Ahangar Zonouzi, Paria Khosravifar |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy Compressed fluid Bubble General Engineering 02 engineering and technology Mechanics Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Magnetic field Physics::Fluid Dynamics symbols.namesake Maxwell's equations Mass transfer 0103 physical sciences 0202 electrical engineering electronic engineering information engineering symbols Volume of fluid method Magnetic potential Boundary value problem |
| Zdroj: | International Journal of Thermal Sciences. 160:106674 |
| ISSN: | 1290-0729 |
| DOI: | 10.1016/j.ijthermalsci.2020.106674 |
| Popis: | In this study, the 3D numerical modeling of the condensation of a bubble inside subcooled liquid has been carried out under a uniform magnetic field and the effects of vertical and horizontal magnetic fields on the condensation behavior of the bubbles with initial diameters of 1.008 mm and 4 mm have been studied. The Tanasawa's mass transfer model was used to simulate the condensation process. The terms related to this model and energy equation have been implemented in OpenFOAM solver. The Maxwell equations, scalar magnetic potential equation, and the magnetic boundary conditions were also applied to the solver by coding. The volume of fluid (VOF) method has been used for capturing the interface of the phases. The obtained results show that the magnetic field stretches the bubble along the magnetic field lines. Besides, the magnetic field increases the pressure inside the bubble, which accelerates the condensation of the bubble in comparison with no magnetic field case. For the bubble with a smaller diameter, the vertical magnetic field contributes to faster condensation of the bubble, while for the bubble with a larger diameter, the bubble condenses and disappears faster in the presence of the magnetic field. |
| Databáze: | OpenAIRE |
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