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New developments on Lorentz force velocimetry for weakly conducting fluids

C. Resagk
Institute of Thermodynamics and Fluid Mechanics, Ilmenau University of Technology 98693 Ilmenau, Germany

E. Ebert
Institute of Thermodynamics and Fluid Mechanics, Ilmenau University of Technology 98693 Ilmenau, Germany

Abstract

We report on the progress of the Lorentz force velocimetry (LFV): a contactless non-invasive flow velocity measurement technique for liquid metals and other conducting fluids by measuring the restoring force at a permanent magnet behind a pipe or duct wall. This method has been developed and demonstrated for various applications in our institute [1] and in industry [2]. New results of flow measurement in very weakly conducting fluid with improved force measurement techniques and non-symmetrical flow profiles are presented.

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