A NEW SCHEME FOR PREDICTING 3-DIMENSIONAL TEMPERATURES IN THE PRESSURIZED THERMAL-SHOCK PROBLEM Conference Paper uri icon

abstract

  • The mixing of cold high-pressure injection water in a reactor cold leg pipe with reactor coolant causes the temperature of the water in the cold leg and the downcomer annulus to decrease. The pressurized thermal shock concern deals with the possibility that the cold injection fluid may overcool and thermally stress the inside surface of the reactor vessel wall. The purpose of this paper is to present a new accurate three-dimensional finite difference technique, the super- or skew upwind scheme. This scheme is incorporated in the energy equation of the COMMIX-1A computer code.

author list (cited authors)

  • HASSAN, Y. A., KIM, J. H., & RICE, J. G.

publication date

  • December 1984