TY - JOUR
T1 - Thermohydraulic analysis of high-Prandtl-number fluid in complex duct simulating first wall in fusion reactor
AU - Satake, Masaaki
AU - Yuki, Kazuhisa
AU - Hashizume, Hidetoshi
PY - 2010/4
Y1 - 2010/4
N2 - For fusion reactors, molten salt is one of the candidates for coolant materials. Molten salt is a high-Prandtl-number fluid; thus, it is necessary to enhance the heat transfer coefficient. It is proposed that rods are inserted into a duct to enhance the heat transfer coefficient. The flow field behind the rod in the duct is visualized to compare experimental data with simulation results. The trends and distributions in the numerical simulation are the same as those in the experiment, and furthermore, the magnitudes of the time and space scales in the numerical simulation are of the same order as those in the experiment. Thermohydraulic numerical analysis confirmed that the heat transfer coefficient is improved by inserting the rod when the fluid is a high-Prandtl-number fluid and the flow field is in the turbulent region. However, it is necessary for the rods to be arranged in the streamwise direction.
AB - For fusion reactors, molten salt is one of the candidates for coolant materials. Molten salt is a high-Prandtl-number fluid; thus, it is necessary to enhance the heat transfer coefficient. It is proposed that rods are inserted into a duct to enhance the heat transfer coefficient. The flow field behind the rod in the duct is visualized to compare experimental data with simulation results. The trends and distributions in the numerical simulation are the same as those in the experiment, and furthermore, the magnitudes of the time and space scales in the numerical simulation are of the same order as those in the experiment. Thermohydraulic numerical analysis confirmed that the heat transfer coefficient is improved by inserting the rod when the fluid is a high-Prandtl-number fluid and the flow field is in the turbulent region. However, it is necessary for the rods to be arranged in the streamwise direction.
KW - k-ε model
KW - Molten salt
KW - PIV
KW - Rod
KW - Two-equation heat transfer model
KW - Wake
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U2 - 10.1016/j.fusengdes.2010.01.025
DO - 10.1016/j.fusengdes.2010.01.025
M3 - Article
AN - SCOPUS:77949913384
SN - 0920-3796
VL - 85
SP - 234
EP - 242
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
IS - 2
ER -