Multidimensional Boron Transport Modeling in Subchannel Approach
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
B3-4 Core Thermalhydraulics and Subchannel Analysis

Ozkan Emre Ozdemir (The Pennsylvania State University)
Maria Avramova (The Pennsylvania State University)
Kenya Sato (Mitsubishi Heavy Industries, LTD.)


The main objective of this study is to implement a solute tracking model into the subchannel code CTF

for simulations of boric acid transients. Previously, three different boron tracking models have been

implemented into CTF and based on the applied analytical and nodal sensitivity studies the Modified

Godunov Scheme approach with a physical diffusion term has been selected as the most accurate and

best estimate solution [1]. This paper will present the implementation of a multidimensional boron

transport modeling with Modified Godunov Scheme within a thermal-hydraulic code based on a

subchannel approach. Based on the cross flow mechanism in a multiple-subchannel rod bundle

geometry, heat transfer and lateral pressure drop effects will be discussed in deboration and boration

case studies

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