Evaluation of Thermal-hydraulic and Scaling Characteristics for Storage Vault

Storage Vault의 열유동 및 상사특성 평가

Yu, Seung-hwan;Bang, Kyung-sik;Kim, Donghee;Lee, Kwan-Soo

  • Received : 2014.11.03
  • Accepted : 2015.02.06
  • Published : 2015.08.31


This research studied a scaling analysis for the selection of proper heat generation at tube for 1/4-scale storage vaults. First of all, the temperature field and velocity distribution of an original scale storage vault were analyzed and then numerical analysis of a 1/4-scale storage vault was performed to compare each model. The proper heat generation for a 1/4-scale storage vault, at which the temperature and velocity field of a 1/4-scale storage vault showed the best agreement with that of the original storage vault, was evaluated with proposed dimensionless parameters. The behavior of temperature and velocity of fluid in the 1/4-scale case were most similar to those of the original scale, using a heat flux 1.3 times higher than that seen in the original scale, which was approximately 190 W.


Storage vault;Scaling analysis;Dimensionless parameters;CFD


  1. Ansys, Ansys Fluent 14.0 User guide(2014).
  2. K. Sakamoto, T. Koga, M. Wataru, and Y. Hattori, “Heat removal characteristics of vault storage system with cross flow for spent fuel”, Nuclear Engineering and Design, 195, 57-68(2000).
  3. B.E. Launder and D.B Spalding, “The numerical computation of turbulent flow”, Computer methods in applied mechanics and engineering, 3, 269-289(1974).
  4. H. Schlichting and K. Gersten, Boundary-Layer Theory, 7th Ed., Springer(1979).