Method for multi-axis, non-contact mixing of magnetic particle suspensions
| DWPI Title: Method for non-contact mixing suspension of magnetic particles, involves progressively transitioning symmetry of triaxial magnetic field to different symmetry thereby causing vorticity axis to reorient from initial vorticity axis |
| Abstract: Continuous, three-dimensional control of the vorticity vector is possible by progressively transitioning the field symmetry by applying or removing a dc bias along one of the principal axes of mutually orthogonal alternating fields. By exploiting this transition, the vorticity vector can be oriented in a wide range of directions that comprise all three spatial dimensions. Detuning one or more field components to create phase modulation causes the vorticity vector to trace out complex orbits of a wide variety, creating very robust multiaxial stirring. This multiaxial, non-contact stirring is particularly attractive for applications where the fluid volume has complex boundaries, or is congested. |
| Use: Method for non-contact mixing suspension of magnetic particles. |
| Advantage: The torque density is uniform throughout the fluid creating a vortex fluid capable of peculiar dynamics. The analysis of the symmetry of these fields enables the prediction of the vorticity axis is determined solely by the relative frequencies of the triaxial field components. |
| Novelty: The method involves providing a fluidic suspension of magnetic particles. A triaxial magnetic field is applied to the fluidic suspension. The triaxial magnetic field comprises three mutually orthogonal magnetic field components are ac magnetic field components. The symmetry of the triaxial magnetic field is progressively transitioned to a different symmetry thereby causing the vorticity axis to reorient from the initial vorticity axis to a vorticity axis parallel to a different mutually orthogonal magnetic field component. |
| Filed: 12/2/2015 |
| Application Number: US14957056A |
| Tech ID: SD 13702.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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