Simulation of a small loss of coolant accident by using RETINA V1.0D code

Gábor Házi, Gusztáv Mayer, István Farkas, Péter Makovi, A. A. El-Kafas

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

RETINA has been developed for modeling of two-phase flow situations in full-scope simulators of nuclear power plants. A special feature of RETINA is that both RETINA V1.0D (drift-flux - 5 equations) and RETINA V1.0-2V (two-fluid - 6 equations) approach are available in the code and the same constitutive relations are used in both cases. The governing equations are discretized implicitly, and an automatic derivation algorithm determines the Jacobian matrix, which is partitioned taking into account the special structure of nuclear power plants. Partitioned inverse formula is used to solve the global equation system providing the possibility of multi-level parallelization. Heat structures are modeled in two dimensions and are coupled to the flow equations explicitly. Since the code will be used in real-time simulators, we paid special attention to time-effective solution. In this paper, we demonstrate the ability of our code by simulating a small loss of coolant accident Paks Model Circuit (PMK). The simula tion results are compared to real measurements obtained by Paks Model Circuit.

Original languageEnglish
Pages (from-to)1583-1594
Number of pages12
JournalAnnals of Nuclear Energy
Volume28
Issue number16
DOIs
Publication statusPublished - Nov 2001

Fingerprint

Loss of coolant accidents
Nuclear power plants
accident
Simulators
Jacobian matrices
Networks (circuits)
Two phase flow
simulation
nuclear power plant
simulator
Fluxes
Fluids
two phase flow
code
loss
matrix
fluid
modeling
Hot Temperature

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Waste Management and Disposal

Cite this

Simulation of a small loss of coolant accident by using RETINA V1.0D code. / Házi, Gábor; Mayer, Gusztáv; Farkas, István; Makovi, Péter; El-Kafas, A. A.

In: Annals of Nuclear Energy, Vol. 28, No. 16, 11.2001, p. 1583-1594.

Research output: Contribution to journalArticle

Házi, Gábor ; Mayer, Gusztáv ; Farkas, István ; Makovi, Péter ; El-Kafas, A. A. / Simulation of a small loss of coolant accident by using RETINA V1.0D code. In: Annals of Nuclear Energy. 2001 ; Vol. 28, No. 16. pp. 1583-1594.
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