Title: Method for multi-axis, non-contact mixing of magnetic particle suspensions

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.

Inventors:

Martin, James E.; Solis, Kyle J.

Issue Date:

2018-06-05

Research Org.:

Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1457023

Patent Number(s):

9987605

Application Number:

14/957,056

Assignee:

National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01F - MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01F - MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING

B01F2215/0454 - Numerical frequency values
B01F5/0057 - {Mixing by creating a vortex flow, e.g. by tangentially introducing jets
B01F15/00253 - {Controlling the whole mixing process}
B01F13/0809 - {the mixture being directly submitted to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles, or for molten metal}

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Dec 02

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING