Electro-vortex flow of liquid metal in a cylindrical cell with localized current supply and variable aspect ratio

Abstract The electro-vortex ﬂow of liquid metal in a cylindrical cell, placed into external vertical magnetic ﬁeld, in case of axial electric current application is studied numerically and experimentally. The results are compared to those previously obtained in case of a localized electric current application. In the absence of the external magnetic ﬁeld, the comparison shows no qualitative change in the ﬂow structure. In presence of the external magnetic ﬁeld, a poloidal motion is suppressed. A critical magnetic ﬁeld of poloidal suppression is shown to be approximately 50% higher in case of axial electric current application.

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Modelling Rayleigh-Bénard convection coupled with electro-vortex flow in liquid metal batteries

Journal of Power Sources ◽

10.1016/j.jpowsour.2021.229988 ◽

2021 ◽

Vol 501 ◽

pp. 229988

Author(s):

Declan Finn Keogh ◽

Victoria Timchenko ◽

John Reizes ◽

Chris Menictas

Keyword(s):

Liquid Metal ◽

Vortex Flow ◽

Bénard Convection ◽

Benard Convection ◽

Rayleigh Benard Convection ◽

Rayleigh Benard ◽

Liquid Metal Batteries

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Oscillations of free surface of rotating liquid metal in a cylindrical cell

Magnetohydrodynamics ◽

10.22364/mhd.57.1.4 ◽

2021 ◽

Vol 57 (1) ◽

pp. 41-50

Keyword(s):

Free Surface ◽

Liquid Metal ◽

Cylindrical Cell ◽

Rotating Liquid

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Numerical Study of Winglet at Low Reynolds Numbers

Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics ◽

10.1115/fedsm2013-16048 ◽

2013 ◽

Author(s):

Sina Pooladsanj ◽

Mehran Tadjfar

Keyword(s):

Aspect Ratio ◽

Flow Field ◽

Vortex Flow ◽

Numerical Study ◽

Reynolds Numbers ◽

Flow Zone ◽

Low Reynolds Numbers ◽

Structured Grid ◽

Flow Field Characteristics ◽

Wing Aspect Ratio

A numerical study has been performed to evaluate the aerodynamics coefficients of a winglet in the range of Reynolds numbers below 30,000. In this study some parameters on winglet design have been considered. The effect of winglet-tip airfoil thickness has been investigated on aerodynamics coefficients. In order to explore this effect, two different airfoils (NACA0002 and NACA0012) were employed at the winglet-tip. The influence of varying the winglet connection angle to the wing on aerodynamics coefficients and flow field characteristics in the vortex flow zone such as; circulation magnitude and vorticity magnitude in the vortex core have been studied. Six connection angles including 20°, 30°, 40°, 50°, 60° and 70° have been studied. Negative values of these angles have also been considered. In addition, the effect of changing wing aspect ratio on aerodynamics coefficients has been investigated. To solve the flow field around the studied geometry a fully structured grid was used which consists of 84 blocks.

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