抄録
Conventional boiling systems, such as boilers, are composed of vertical parallel channels. Among various types of parallelchannel systems, In a parallel-channel system with multi-branches structure is anticipated peculiar behaviors in flow distribution and dynamic behavior, i.e. oscillation mode. Experimental investigation was conducted on the oscillatory flow instability in such system with complicated structure,. The experimental apparatus composed of two parallel units having two parallel channels in each, consequently four parallel channels. Experimental results revealed the effect of the location of inlet flow restriction on the flow stability and the flow oscillation modes. The threshold of flow instability was well estimated in some extent using modified G. Guido’s method.