An Uncertainty Quantification of the Computational Fluid Dynamics Solution to the Modeling of the Contact Point in a Wire-Wrapped Fuel Assembly

2018 ◽  
Author(s):  
Marc-Olivier G. Delchini ◽  
Laura P. Swiler ◽  
Emilian P. Popov ◽  
William David Pointer
Author(s):  
Andrea Beck ◽  
Jakob Dürrwächter ◽  
Thomas Kuhn ◽  
Fabian Meyer ◽  
Claus-Dieter Munz ◽  
...  

2013 ◽  
Vol 242 ◽  
pp. 27-39 ◽  
Author(s):  
A. Gel ◽  
R. Garg ◽  
C. Tong ◽  
M. Shahnam ◽  
C. Guenther

2006 ◽  
Vol 217 (1) ◽  
pp. 200-216 ◽  
Author(s):  
Y. Yu ◽  
M. Zhao ◽  
T. Lee ◽  
N. Pestieau ◽  
W. Bo ◽  
...  

Author(s):  
W. David Pointer ◽  
Adrian Tentner ◽  
Tanju Sofu ◽  
Simon Lo ◽  
Andrew Splawski

This paper presents recent results obtained as part of the on-going integral validation of an advanced Eulerian-Eulerian two-phase (E2P) computational fluid dynamics based boiling model that allows the detailed analysis of the two-phase flow and heat transfer phenomena in a Boiling Water Reactor (BWR) fuel assembly. The code is being developed as a customized module built on the foundation of the commercial CFD-code STAR-CD which provides general two-phase flow modeling capabilities. Simulations of a prototypic BWR fuel assembly experiment have been completed as an initial assessment of the applicability of the E2P model to realistic BWR geometries and conditions. Initial validation has focused on comparison with measured sub-channel averaged data to enable the benchmarking of the accuracy of the E2P against the current predictive capabilities of the sub-channel methods. The paper will discuss the effects of modeling assumptions, assumed coefficient values and the computational mesh structure used to describe the fuel assembly geometry on the accuracy of the sub-channel averaged void fraction.


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