MODELING OF CORE SPREADING PROCESSES (PREPRINT IBRAE NSI-13-93)

Preprint IBRAE № NSI-13-93

Aksenova A.E., Chudanov V.V., Popkov A.G., Strizhov V.F., Vabishchevich P.N. 

In this paper the mathematical aspects of the problem of spreading of molten core onto concrete basemat are considering. As principal processes the heat- and mass transfer in the gravity driven molten corium in different approximations are considering. Full models are based on the set of Navier-Stokes equations for incompressible fluid, simplified quasi two dimensional models are based on the thin layer approximation. The process of corium solidification is taken into account. Computational results are presented. 

Bibliographical reference

Chudanov V.V., Popkov A.G., Strizhov V.F., Vabishchevich P.N., Aksenova A.E. MODELING OF CORE SPREADING PROCESSES. Preprint NSI-13-93. Moscow: Nuclear Safety Institute. March 1993. 21 p. – Refs.: 14 items.