Sensitivity Study on a CFD Model for the Analysis of Moderator Fluid Flow and Heat Transfer Inside CANDU Calandria
NURETH-14 - 2011 September 25-30


Presented at:
NURETH-14
2011 September 25-30
Location:
Toronto, Canada
Session Title:
B3-1 Core Thermalhydraulics and Subchannel Analysis

Authors:
G. H. Lee (Korea Institute of Nuclear Safety)
S. W. Woo (Korea Institute of Nuclear Safety)
  

Abstract

In this paper, sensitivity study on a CFD model for the accurate analysis of moderator fluid flow and heat transfer inside calandria is conducted. Two main items, i.e. porous medium assumption and turbulence model, are considered for in-line tube bank [1] and Sheridan Park Engineering Laboratory (SPEL) experiment [2]. Using the commercial flow solver, FLUENT [3], the prediction to consider the real geometry of fuel channels is compared to previous results conducted with the porous medium assumption using the isotropic pressure loss model. Also, the prediction performance of various turbulence models (e.g. k-ε model, Reynolds stress model, etc.) is assessed.

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