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Published in:
2021 | OriginalPaper | Chapter
Effect of Seismic Excitation on Bubble Behavior in Liquid Between Fuel Rods of Boiling Water Reactors
Authors : S. P. Chauhan, M. Eswaran, G. R. Reddy
Published in: Advances in Structural Vibration
Publisher: Springer Singapore
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Abstract
Behavior of gas–liquid two-phase flow of liquid–vapor behavior is unknown under the seismic conditions. Mainly, fluctuation of void faction is an important factor for the safety operation of the nuclear reactor. In this work, the bubble behavior in between two fuel rods under seismic excitation has been investigated through numerical simulation. Initially water-sloshing problem is solved for the purpose of validation. Then, bubble behavior is analyzed with and without seismic excitation. It is found that the bubble coalescence time with free surface and pressure exert on fuel rod, which is considered as important parameters in the safety of the reactor, depends on bubble depth and seismic excitation.