Sorting prolate and oblate spheroids with a diatomic gas in a magnetic field
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866911467302813696 |
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| author | Lier, Ruben |
| author_facet | Lier, Ruben |
| contents | For a gas of diatomic particles with a nonzero magnetic moment, the Senftleben-Beenakker effect says that transport can be affected by a magnetic field even when the particles are neutral. As a consequence of the Senftleben-Beenakker effect, two anisotropic odd viscosities become nonvanishing which for large magnetic field are of opposite sign. We solve for the anisotropic odd viscous Stokes flow around the spheroid using the Lorentz reciprocal theorem and show that the forces on oblate and prolate spheroids are such that they can be separated upon undergoing sedimentation in a diatomic gas with a background magnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_21475 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Sorting prolate and oblate spheroids with a diatomic gas in a magnetic field Lier, Ruben Fluid Dynamics For a gas of diatomic particles with a nonzero magnetic moment, the Senftleben-Beenakker effect says that transport can be affected by a magnetic field even when the particles are neutral. As a consequence of the Senftleben-Beenakker effect, two anisotropic odd viscosities become nonvanishing which for large magnetic field are of opposite sign. We solve for the anisotropic odd viscous Stokes flow around the spheroid using the Lorentz reciprocal theorem and show that the forces on oblate and prolate spheroids are such that they can be separated upon undergoing sedimentation in a diatomic gas with a background magnetic field. |
| title | Sorting prolate and oblate spheroids with a diatomic gas in a magnetic field |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2602.21475 |