Summary: Fusion Engineering and Design 72 (2004) 6381
Thermofluid modeling and experiments for free surface
flows of low-conductivity fluid in fusion systems
S. Smolentseva,, N. Morleya, B. Freezea, R. Miraghaiea, J.-C. Naveb,
S. Banerjeeb, A. Yinga, M. Abdoua
a UCLA, MAE Department, 44-114 Engineering IV, 420 Westwood Pza, Los Angeles, CA 90095-1597, USA
b UCSB, ME Department, Santa Barbara, CA 93106, USA
Available online 11 September 2004
The paper summarizes results of experimental and theoretical studies related to the flow of liquids with a free surface and poor
electrical and thermal conductivity, such as molten salts, under conditions relevant to fusion energy systems. These results have
been obtained over last several years when developing the liquid wall concept as a part of the APEX project [M.A. Abdou, The
APEX TEAM, On the exploration of innovative concepts for fusion chamber technology, Fusion Eng. Des. 54 (2001) 181247].
As a theoretical tool a modified K model of turbulence coupled with the NavierStokes equations written in the thin-shear-layer
approximation is used for studying wavy, turbulent flows in a spanwise magnetic field. The experimental part covers current
results for supercritical flows in regimes transitional from "weak" to "strong" turbulence, which are expected to occur in the
reference liquid wall flows. The paper also describes on-going work on novel schemes of heat transfer promotion and current
directions for direct numerical simulation.
© 2004 Elsevier B.V. All rights reserved.
Keywords: Turbulence; Free surface; Surface waves; Heat transfer; Magnetohydrodynamics; APEX