B215 ベンチュリースクラバー内部二相流動に対する数値解析コードTPFITの適用性の検討(OS3 軽水炉・新型炉・原子力安全(3))

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  • B215 Applicability of numerical simulation code TPFIT to two-phase flow in Venturi scrubber

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As one of the filtered venting devices for light water reactor, Venturi scrubber can operate with effective decontamination efficiency because dispersed flow is formed in the Venturi scrubber by pressure difference between inside and outside of holes for liquid suction. Droplet diameter and its distribution in cross-section area are important for the decontamination. However, they are changed by hydraulic behavior of suctioned liquid until atomized, and kinds of atomization phenomena. In this report, to understand the hydraulic behavior of the liquid in detail for the filtered venting, we performed visualized observation experimentally and numerical simulation by TPFIT. Then the numerical simulation result was validated by the experimental data.

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