DHCVIM: A direct heating containment vessel interactions module

• Main Authors: Ginsberg, T., Tutu, N.K.
• Language: unknown
• Published: 2008
• Subjects: 22 GENERAL STUDIES OF NUCLEAR REACTORS; CONTAINMENT; MATHEMATICAL MODELS; WATER COOLED REACTORS; PRESSURE VESSELS; COMPARATIVE EVALUATIONS; CORE CATCHERS; D CODES; ENERGY TRANSPORT; EXPERIMENTAL DATA; HEAT TRANSFER; RADIATION TRANSPORT; COMPUTER CODES; CONTAINERS; DATA; ENERGY TRANSFER; INFORMATION; NUMERICAL DATA; REACTOR COMPONENTS; REACTORS; Surtsey
• Online Access: http://www.osti.gov/servlets/purl/6332074; https://www.osti.gov/biblio/6332074

Models for prediction of direct containment heating phenomena as implemented in the DHCVIM computer module are described. The models were designed to treat thermal, chemical and hydrodynamic processes in the three regions of the Sandia National Laboratory Surtsey DCH test facility: the melt generator, cavity and vessel. The fundamental balance equations, along with constitutive relations are described. A combination of Eulerian treatment for the gas phase and Lagrangian treatment for the droplet phase is used in the modeling. Comparisons of calculations and DCH-1 test results are presented. Reasonable agreement is demonstrated for the vessel pressure rise, melt generator pressure decay and particle size distribution.