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Simulations of Interfacial Dynamics of Rising Bubble in Liquid LBE Alloy Based on Diffuse-Interface Method

[+] Author Affiliations
Chuntao Wang, Jiejin Cai

South China University of Technology, Guangzhou, China

Paper No. ICONE25-66753, pp. V005T05A022; 7 pages
doi:10.1115/ICONE25-66753
From:
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 5: Advanced and Next Generation Reactors, Fusion Technology; Codes, Standards, Conformity Assessment, Licensing, and Regulatory Issues
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5783-0
  • Copyright © 2017 by ASME

abstract

This paper describes a novel numerical simulation method for simulating interfacial dynamics of a single bubble rising in liquid lead bismuth alloy. Numerical simulation of a single nitrogen bubble in liquid lead bismuth alloy from static to the full development of dynamic behavior based on diffuse-interface method was done to get the relationship of rising velocity and deformation of the bubble by time. Results of simulation of the flow characteristics of inert gas and liquid LBE alloy based on diffuse-interface method are consistent with the Grace emperical relationship graph, which verifies the feasibility and the accuracy of diffuse-interface method on simulation of rising bubble’s behavior in liquid LBE alloy. It is easy to find that with the increase of Eo, which is determined by bubble initial diameter when fulid is determined, the bubble deformation increases, and the bigger the bubble is, the easier it is to split the sub bubbles.

Copyright © 2017 by ASME

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