TY - JOUR
T1 - Turbulent and electrical phenomena in a liquid metal MHD energy conversion device under various load conditions
AU - Kobayashi, Hiromichi
AU - Okuno, Yoshihiro
PY - 2016
Y1 - 2016
N2 - We numerically simulate the turbulent phenomena in a liquid metal MHD energy conversion device under various load conditions (open-circuit, short-circuit, and externally applied current) with non-uniform magnetic flux densities. The large eddy currents under the open-circuit condition promote the recurrence of turbulence on the sidewalls in the downstream region, while the strong Lorentz force (upstream on average) near the electrodes due to a large load current under the short-circuit condition suppresses the turbulence transition from the sidewalls. The strong Lorentz force (downstream on average) produced by external current curbs eddies in the electrodes area, while turbulence appears again just in the downstream region.
AB - We numerically simulate the turbulent phenomena in a liquid metal MHD energy conversion device under various load conditions (open-circuit, short-circuit, and externally applied current) with non-uniform magnetic flux densities. The large eddy currents under the open-circuit condition promote the recurrence of turbulence on the sidewalls in the downstream region, while the strong Lorentz force (upstream on average) near the electrodes due to a large load current under the short-circuit condition suppresses the turbulence transition from the sidewalls. The strong Lorentz force (downstream on average) produced by external current curbs eddies in the electrodes area, while turbulence appears again just in the downstream region.
KW - Eddy
KW - Liquid metal flow
KW - Lorentz force
KW - MHD energy conversion
KW - Turbulence
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U2 - 10.1541/ieejpes.136.773
DO - 10.1541/ieejpes.136.773
M3 - Article
AN - SCOPUS:84990854968
VL - 136
SP - 773
EP - 778
JO - IEEJ Transactions on Power and Energy
JF - IEEJ Transactions on Power and Energy
SN - 0385-4213
IS - 10
ER -