High-Temperature Ultrasonic Doppler Velocimetry for Lead-Lithium Flows
High-Temperature Ultrasonic Doppler Velocimetry for Lead-Lithium Flows
复制标题
铅锂流的高温超声多普勒测速
DOI:
10.1007/978-4-431-54067-0_31
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
et al
中科院分区:
文献类型:
--
作者:
Y.Ueki;et al
Nuclear fusion reactors are a promising candidate of the future power source. Magnetic confinement fusion (MCF) blankets adopt high-temperature liquid metals (LM) such as the lead-lithium eutectic alloy (PbLi), as a coolant/tritium breeder. Developments of the LM-MCF blankets require comprehensive understanding of the high-temperature LM flows under the influence of the plasma-confining magnetic field. A high-temperature ultrasonic Doppler velocimetry (HT-UDV) has been developed as a flow diagnostic technique to acquire local velocity profiles of the opaque, high-temperature LM flow. This paper describes HT-UDV technique that has been successfully applied to measure velocity profiles of PbLi flows. The impact of tracer particles is investigated to determine requirements for HT-UDV measurement of PbLi flows. The HT-UDV system is tested on a PbLi flow driven by a rotating-disk in an inert atmosphere. We find that a sufficient amount of particles contained in the molten PbLi are required to successfully measure PbLi velocity profiles by HT-UDV. An X-ray diffraction analysis is performed to identify those particles in PbLi, and indicates that those particles were made of the lead mono-oxide (PbO). Since the specific densities of PbLi and PbO are close to each other, the PbO particles are expected to be well-dispersed in the bulk of molten PbLi. We conclude that the excellent dispersion of PbO particles enables the HT-UDV to obtain reliable velocity profiles for operation times of around 12 h.
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影响因子:
0.9
作者:
Makoto Kobayashi;Akiko Hamada;Katsushi Matsuoka;Masato Suzuki;Junya Osuo;Y. Edao;S. Fukada;T. Yamanishi;Y. Oya;K. Okuno
通讯作者:
K. Okuno
DOI:
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发表时间:
2003
期刊:
影响因子:
--
作者:
S. Eckert;G. Gerbeth;V. Melnikov
通讯作者:
V. Melnikov
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
H. Okamoto
通讯作者:
H. Okamoto
DOI:
--
发表时间:
2006
期刊:
Proceedings of the 5^<th> Int. Symposium on Ultrasonic Doppler Method for Fluid Mechanics and Fluid engineering 5
影响因子:
--
作者:
Y.Tasaka;M.Yoshida;Y.Takeda;T.Yanagisawa
通讯作者:
T.Yanagisawa
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S. Eckert;A. Cramer;G. Gerbeth
通讯作者:
G. Gerbeth