The results of a computational study on boiling channel stability are here discussed. The study compares the information obtained by two programs, developed in previous work for the linear and the nonlinear stability analysis of boiling channels basing on a simplified flow model, with the predictions of a well known system code. The phenomena highlighted by the results of the system code, adopted with different flow models and numerical methods, are discussed in a systematic way with the aid of the description obtained by the simplified model, in order to obtain a clearer picture than could be achieved by the mere application of the system code to conditions of interest for boiling water reactor stability. The effects on the obtained results of non-equilibrium, numerical discretization and number of nodes are considered, evaluating their influence on the predicted stability boundaries. Some physical aspects of the density-wave mode of instability are finally discussed basing on the predictions obtained by the different models.
Skip Nav Destination
14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
0-7918-4243-6
PROCEEDINGS PAPER
Analysis of Basic Phenomena in Boiling Channel Instabilities With Different Flow Models and Numerical Schemes
Walter Ambrosini,
Walter Ambrosini
University of Pisa, Pisa, Italy
Search for other works by this author on:
Juan Carlos Ferreri
Juan Carlos Ferreri
Autoridad Regulatoria Nuclear, Buenos Aires, Argentina
Search for other works by this author on:
Walter Ambrosini
University of Pisa, Pisa, Italy
Juan Carlos Ferreri
Autoridad Regulatoria Nuclear, Buenos Aires, Argentina
Paper No:
ICONE14-89863, pp. 889-900; 12 pages
Published Online:
September 17, 2008
Citation
Ambrosini, W, & Ferreri, JC. "Analysis of Basic Phenomena in Boiling Channel Instabilities With Different Flow Models and Numerical Schemes." Proceedings of the 14th International Conference on Nuclear Engineering. Volume 2: Thermal Hydraulics. Miami, Florida, USA. July 17–20, 2006. pp. 889-900. ASME. https://doi.org/10.1115/ICONE14-89863
Download citation file:
34
Views
Related Proceedings Papers
Related Articles
An Experimental Study of Subcooled Film Boiling on a Vertical Surface—Hydrodynamic Aspects
J. Heat Transfer (February,1992)
Stability of the Boiling Two-Phase Flow of a Magnetic Fluid
J. Appl. Mech (November,2007)
Time-Derivative Preconditioning Methods for Multicomponent Flows—Part I: Riemann Problems
J. Appl. Mech (March,2009)
Related Chapters
Lessons Learned: NRC Experience
Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards
Constraints
Nonlinear Regression Modeling for Engineering Applications: Modeling, Model Validation, and Enabling Design of Experiments
Two Dimensional Limit Equilibrium Method for Stability Analysis of Jointed Rock Mass Slope
International Conference on Green Buildings and Optimization Design (GBOD 2012)