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Theoretical Investigation of Gas Filling and Leaking in Inertial Confinement Fusion Hohlraum

Author

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  • Cheng Yu

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Suchen Wu

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Weibo Yang

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
    School of Hydraulic, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China)

Abstract

The gas filling and retention of inertial confinement fusion (ICF) hohlraum is an important issue in ICF studies. In this study, a theoretical model of gas filling and leaking processes for ICF hohlraum is developed based on the unified flow theory. The effects of the fill tube size and the filling pressure on the gas filling and leaking performance are investigated. The results indicate that an increase in the variation rate of the filling/leaking pressure leads to a larger maximum pressure difference between the inside and outside of the ICF hohlraum during the filling/leaking process. The critical pressure difference of the filling process is nearly equal to that of the leaking process. Increase in fill tube diameter and decrease in its length both lead to a lower probability of the rupture of polymeric films at two ends of the hohlraum, and thus increases the security of the hohlraum. In addition, a departure in cross sectional shape of fill tube from circle to rectangle triggers an increase in pressure difference between the inside and outside of the ICF hohlraum, which raises the risk of polymeric films rupture and decreases the security of the hohlraum structure.

Suggested Citation

  • Cheng Yu & Suchen Wu & Weibo Yang, 2018. "Theoretical Investigation of Gas Filling and Leaking in Inertial Confinement Fusion Hohlraum," Sustainability, MDPI, vol. 10(10), pages 1-12, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:10:p:3763-:d:176623
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    References listed on IDEAS

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    1. Ugo Bardi, 2010. "Extracting Minerals from Seawater: An Energy Analysis," Sustainability, MDPI, vol. 2(4), pages 1-13, April.
    2. Hossam A.Gabbar & C. A. Barry Stoute & Daniel Bondarenko & Nicholas Tarsitano & Anas Abdel Rihem & Stefan Sirakov & Shraddhey Jani & Samskruthi Menashi, 2018. "X-Pinch Plasma Generation Testing for Neutron Source Development and Nuclear Fusion," Energies, MDPI, vol. 11(4), pages 1-17, April.
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