弾性堰を越える流れによって発生する自励的液面揺動に関する研究　（第３報　　模型試験結果と解析結果の比較および系の安定性に影響を及ぼす各種パラメータに関する考察）

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  • Self-Excited Sloshing Due to the Fluid Discharge over a Flexible Weir. (3rd Report. Comparison between Experimental and Analytical Results and Discussion on the Parameters which Effect on the Stability of the System).
  • ダンセイ セキ オ コエル ナガレ ニ ヨッテ ハッセイスル ジレイテキ エキ

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An analytical study was performed for the fluid elastic instability as observed in Super-Phenix-1 LMFBR. In this report, calculations were conducted for the 1/10-scale experimental model, which is one of the representative model employed by Fujita et al. Agreement between the analytical and the experimental results were good. It is shown that the kinematic effect of the discharged fluid on the downstream plenum sloshing is predominant rather than the dynamic effect, i. e. the increase in volumetric inflow rate into the downstream plenum causes the free surface to rise. Therefore, the system becomes unstable if the inflow rate increases when the free surface of the downstream plenum are rising.

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