Velocity and flow rate measurement of liquid metal by contactless electromagnetic Lorentz force technique

International Symposium on Liquid Metal Processing & Casting 2015

材料科学;金属工艺学

Dubovikova, N.^1 ; Karcher, C.^1 ; Kolesnikov, Y.^1

Technische Universität Ilmenau, Institute of Thermodynamics and Fluid Mechanics, P.O.Box 100565, Ilmenau

D-98684, Germany^1

关键词: Contactless technique;    Electrical conductivity;    Electrically conductive;    Flow rate measurements;    Liquid metal flows;    Lorentz force velocimetry;    Small fluctuation;    Volumetric flow rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/143/1/012022/pdf
DOI  :  10.1088/1757-899X/143/1/012022

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Providing flow analysis in case of aggressive and hot liquids is a complicated task, especially when liquid's composition and, hence, its physical properties, are unknown. Contactless techniques are the most promising methods for liquid metal flow rate control and some of these methods are based on electromagnetic induction of breaking force acting on an electrically conductive fluid which is moving through a magnetic field. One of the techniques is time-of-flight Lorentz force velocimetry (LFV). By using the method one can estimate volumetric flow rate without knowing of electrical conductivity, magnitude of magnetic field or characteristic dimension. The most important and crucial challenge within the technique is detection of small fluctuations of Lorentz force value. In this article we will focus on application and investigation of time-of-flight LFV.