上下動揺時の二相流動特性の測定 : 上下動揺実験装置による実験結果

概要

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To evaluated the effects of two-phase flow behavior induced by ship motion, a thermal hydrauric test loop (natural circulation boiling water loop) was mounted on the Heaving Facility. We report the results of some measurements on two-phase flow dynamics and discuss them in this paper. Flow rate, critical heat flux, and vapor void fraction was measured. The range of acceleration amplitude tested was 0.15 to 0.3 g and the frequency of motion was 0.2 to 1.5 Hz. We investigated the frequency responce (heaving accelerationto-flow rate) of the Test Loop. Correlation techniques was used as a statistical method of the system identification. The resonance peaks appear with increasing heat flux. The greatest flow fluctuations occur when there is resonance between heaving motion frequency and natural hydraulic flow oscillation frequency.
独立行政法人海上技術安全研究所の論文
1976-09-30