Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics
An analogy between magneto-fluid dynamics (MFD/MHD) and geostrophic flow in a rotating frame of reference, including the existence of electromagnetic columns identical to Taylor–Proudman columns, is identified and demonstrated theoretically here. The latter occurs within the limit of large values of...
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2024-10-01
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| author | Peter Vadasz |
| author_facet | Peter Vadasz |
| author_sort | Peter Vadasz |
| collection | DOAJ |
| description | An analogy between magneto-fluid dynamics (MFD/MHD) and geostrophic flow in a rotating frame of reference, including the existence of electromagnetic columns identical to Taylor–Proudman columns, is identified and demonstrated theoretically here. The latter occurs within the limit of large values of a dimensionless group representing the magnetic field number. Such conditions are shown to be easily satisfied in reality. Consequently, the electromagnetic fluid flow subject to these conditions is two dimensional and the streamlines are shown to be identical to the pressure lines, in complete analogy to rotating geostrophic flows. These results suggest that von Kármán vortices are anticipated in the wake of virtual electromagnetic columns. An experimental setup is suggested to confirm the theoretical results experimentally. |
| format | Article |
| id | doaj-art-b1b5973350164d6b9d6d330e2aec7676 |
| institution | OA Journals |
| issn | 2311-5521 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj-art-b1b5973350164d6b9d6d330e2aec76762025-08-20T02:11:12ZengMDPI AGFluids2311-55212024-10-0191024210.3390/fluids9100242Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid DynamicsPeter Vadasz0Department of Mechanical Engineering, Northern Arizona University, Flagstaff, AZ 86011, USAAn analogy between magneto-fluid dynamics (MFD/MHD) and geostrophic flow in a rotating frame of reference, including the existence of electromagnetic columns identical to Taylor–Proudman columns, is identified and demonstrated theoretically here. The latter occurs within the limit of large values of a dimensionless group representing the magnetic field number. Such conditions are shown to be easily satisfied in reality. Consequently, the electromagnetic fluid flow subject to these conditions is two dimensional and the streamlines are shown to be identical to the pressure lines, in complete analogy to rotating geostrophic flows. These results suggest that von Kármán vortices are anticipated in the wake of virtual electromagnetic columns. An experimental setup is suggested to confirm the theoretical results experimentally.https://www.mdpi.com/2311-5521/9/10/242magneto-eklinostrophic flowelectromagnetic columnsTaylor–Proudman columnsgeostrophic flow |
| spellingShingle | Peter Vadasz Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics Fluids magneto-eklinostrophic flow electromagnetic columns Taylor–Proudman columns geostrophic flow |
| title | Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics |
| title_full | Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics |
| title_fullStr | Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics |
| title_full_unstemmed | Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics |
| title_short | Magneto-eklinostrophic Flow, Electromagnetic Columns, and von Kármán Vortices in Magneto-Fluid Dynamics |
| title_sort | magneto eklinostrophic flow electromagnetic columns and von karman vortices in magneto fluid dynamics |
| topic | magneto-eklinostrophic flow electromagnetic columns Taylor–Proudman columns geostrophic flow |
| url | https://www.mdpi.com/2311-5521/9/10/242 |
| work_keys_str_mv | AT petervadasz magnetoeklinostrophicflowelectromagneticcolumnsandvonkarmanvorticesinmagnetofluiddynamics |