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http://dx.doi.org/10.1016/j.net.2016.08.008

Two-Phase Flow Field Simulation of Horizontal Steam Generators  

Rabiee, Ataollah (School of Mechanical Engineering, Shiraz University)
Kamalinia, Amir Hossein (School of Mechanical Engineering, Shiraz University)
Hadad, Kamal (School of Mechanical Engineering, Shiraz University)
Publication Information
Nuclear Engineering and Technology / v.49, no.1, 2017 , pp. 92-102 More about this Journal
Abstract
The analysis of steam generators as an interface between primary and secondary circuits in light water nuclear power plants is crucial in terms of safety and design issues. VVER-1000 nuclear power plants use horizontal steam generators which demand a detailed thermal hydraulics investigation in order to predict their behavior during normal and transient operational conditions. Two phase flow field simulation on adjacent tube bundles is important in obtaining logical numerical results. However, the complexity of the tube bundles, due to geometry and arrangement, makes it complicated. Employment of porous media is suggested to simplify numerical modeling. This study presents the use of porous media to simulate the tube bundles within a general-purpose computational fluid dynamics code. Solved governing equations are generalized phase continuity, momentum, and energy equations. Boundary conditions, as one of the main challenges in this numerical analysis, are optimized. The model has been verified and tuned by simple two-dimensional geometry. It is shown that the obtained vapor volume fraction near the cold and hot collectors predict the experimental results more accurately than in previous studies.
Keywords
Computational Fluid Dynamics; Horizontal Steam Generator; Porous Media; Vapor Volume Fraction;
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