Design and Analysis of a Divertor Langmuir Probe for ITER
Autor: | Xiang Liu, Christopher Watts, James P. Gunn, Guangwu Zhong, Wei Zhao, Yuzhong Jin |
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Rok vydání: | 2019 |
Předmět: |
Nuclear and High Energy Physics
Yield (engineering) Materials science Field (physics) Convective heat transfer 020209 energy Mechanical Engineering Divertor Nuclear engineering chemistry.chemical_element Flux 02 engineering and technology 01 natural sciences Copper 010305 fluids & plasmas Stress (mechanics) symbols.namesake Nuclear Energy and Engineering chemistry 0103 physical sciences 0202 electrical engineering electronic engineering information engineering symbols Langmuir probe General Materials Science Civil and Structural Engineering |
Zdroj: | Fusion Science and Technology. 75:120-126 |
ISSN: | 1943-7641 1536-1055 |
DOI: | 10.1080/15361055.2018.1520577 |
Popis: | An all-welded ITER divertor Langmuir probe (DLP) model was analyzed by ANSYS 17.0. Temperature field and surface convective heat transfer were obtained by fluid analysis using ANSYS/CFX under both steady-state (10 MW/m2) and slow transient-state (20 MW/m2 for 10 s) working conditions. Mechanical analysis was performed with the temperature field as the preloading condition. The equivalent von-Mises stress and plastic strain distribution have been obtained. The analyzed results show that the DLPs would withstand very high temperature, which can reach 1852°C mainly owing to the extremely high heat flux as well as photon irradiation. The maximum temperature of the copper connection between the DLP and the monoblock would be 792°C, demonstrating that the bonding structure would not be destroyed. All the materials except the alumina pipe have undergone plastic yield analysis, implying that a low cycle strain-fatigue analysis needs to be done in the near future. |
Databáze: | OpenAIRE |
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