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Natural Convection Between Concentric Spheres in Electromagnetic Fields
Chung-Hyo Jung,Takahiko Tanahashi 대한기계학회 2008 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.22 No.6
This study performs numerical analyses for two different working fluids. One is an analysis of natural convection us-ing a model with air that is compared with the results of applied experiments. Then, it canpattern of natural convection in concentric spheres. The other is an investigation for the relationship between velocity field, electromagnetic field, and temperature field in a model with molten metal. The subject of the analysis model is the natural convection between two concentric spherical shells. In particular, a process where induced magnetic fields intensify the imposed magnetic field can be called a dynamo process. This study uses a modified B method in order to investigate the role of this induced magnetic field. This method is also compared to a Φ method that only considers magnetic field for the velocity field through applying Coriolis forces.