%0 Journal Article
	%A Pei-Syuan Ruan and  Ya-Chi Yu and  Shao-Wen Chen and  Jin-Der Lee and  Jong-Rong Wang and  Chunkuan Shih
	%D 2020
	%J International Journal of Aerospace and Mechanical Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 157, 2020
	%T Analysis of Air-Water Two-Phase Flow in a 3x3 Rod Bundle
	%U https://publications.waset.org/pdf/10011017
	%V 157
	%X This study investigated the void fraction characteristics under low superficial gas velocity (Jg) and low superficial fluid velocity (Jf) conditions in a 3x3 rod bundle geometry. Three arrangements of conductivity probes were set to measure the void fraction at various cross-sectional regions, including rod-gap, sub-channel and rod-wall regions. The experimental tests were performed under the flow conditions of Jg = 0-0.236 m/s and Jf = 0-0.142 m/s, and the time-averaged void fractions were recorded at each flow condition. It was observed that while the superficial gas velocity increases, the small bubbles started to cluster together and become big bubbles. As the superficial fluid velocity increases, the local void fractions of the three test regions will get closer and the bubble distribution will be more uniform across the cross section.

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