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Pumping fluid by magnetic surface stress

DOI zum Zitieren dieses Dokuments: https://doi.org/10.1088/1367-2630/8/1/018
URN to cite this document: urn:nbn:de:bvb:703-epub-3986-8

Title data

Krauß, Robert ; Liu, Mario ; Reimann, Bert ; Richter, Reinhard ; Rehberg, Ingo:
Pumping fluid by magnetic surface stress.
In: New Journal of Physics. Vol. 8 (January 2006) . - no. 18.
ISSN 1367-2630
DOI: https://doi.org/10.1088/1367-2630/8/1/018

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Abstract

A magnetic field rotating on the free surface of a ferrofluid layer is shown to induce considerable fluid motion towards the direction the field is rolling. The measured flow velocity (i) increases with the square of the magnetic field amplitude, (ii) is proportional to the thickness of the fluid layer and (iii) has a maximum at a fluid specific frequency. The pumping speed can be estimated with a two-dimensional flow model. We compare the pumping performance of a magnetic fluid based on magnetite with the performance of a novel fluid based on cobalt.

Further data

Item Type: Article in a journal
Keywords: Ferrofluids; Pumping; Surface stress
DDC Subjects: 500 Science > 530 Physics
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-3986-8
Date Deposited: 20 Feb 2019 10:38
Last Modified: 20 Feb 2019 10:38
URI: https://epub.uni-bayreuth.de/id/eprint/3986

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