Summary: Fusion Engineering and Design 81 (2006) 15431548
Exploring liquid metal plasma facing component (PFC)
concepts--Liquid metal film flow behavior under
fusion relevant magnetic fields
M. Narula, M.A. Abdou, A. Ying, N.B. Morley, M. Ni, R. Miraghaie, J. Burris
Fusion Engineering Sciences, Mechanical and Aerospace Engineering Department, University of California,
Los Angeles 420 Westwood Plaza, Los Angeles, CA 90095-1597, USA
Received 6 February 2005; received in revised form 19 August 2005; accepted 19 August 2005
Available online 20 January 2006
The use of fast moving liquid metal streams or "liquid walls" as a plasma contact surface is a very attractive option and has
been looked upon with considerable interest over the past several years, both by the plasma physics and fusion engineering
programs. Flowing liquid walls provide an ever replenishing contact surface to the plasma, leading to very effective particle
pumping and surface heat flux removal. A key feasibility issue for flowing liquid metal plasma facing component (PFC) systems,
pertains to their magnetohydrodynamic (MHD) behavior under the spatially varying magnetic field environment, typical of a
fusion device. MHD forces hinder the development of a smooth and controllable liquid metal flow needed for PFC applications.
The present study builds up on the ongoing research effort at UCLA, directed towards providing qualitative and quantitative data
on liquid metal free surface flow behavior under fusion relevant magnetic fields.
© 2005 Elsevier B.V. All rights reserved.
Keywords: Liquid metal; Free surface; Plasma facing components; Magnetohydrodynamics; Numerical modeling; NSTX divertor