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2016•Unpublished venueRequires access

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet

Ryo MORITA, Yuta UCHIYAMA, Shun N. Watanabe, Shirō Takahashi, Qiang Xu, Noriyuki Takamura

Open publisher page 6 citations

Abstract

Nuclear power plants are designed to prevent the damage of safety installations and human safety due to the jet impingement when a pipe is ruptured. We have investigated evaluation methods for the design basis of protection of plants against effects of postulated pipe rupture using computational fluid dynamics analysis (CFD). The steam jet tests using particle image velocimetry were conducted in order to verify the CFD methods. Spread of steam jet could be visualized. Shapes of steam jet obtained by CFD were almost the same as those by tests. The spread angle of free jet were investigated using CFD, and we have found that the spread angle strongly depends on the inlet pressure. This is thought as the different tendency from Established Standards.

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What this paper is about

Nuclear power plants are designed to prevent the damage of safety installations and human safety due to the jet impingement when a pipe is ruptured. We have investigated evaluation methods for the design basis of protection of plants against effects of postulated pipe rupture using computational fluid dynamics analysis (CFD). The steam jet tests using particle image velocimetry were conducted in order to verify the CFD methods. Spread of steam jet could be visualized. Shapes of steam jet obtained by CFD were almost the same as those by tests. The spread angle of free jet were investigated using CFD, and we have found that the spread angle strongly depends on the inlet pressure. This is thought as the different tendency from Established Standards.

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OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Nuclear power plants are designed to prevent the damage of safety installations and human safety due to the jet impingement when a pipe is ruptured. We have investigated evaluation methods for the design basis of protection of plants against effects of postulated pipe rupture using computational fluid dynamics analysis (CFD). The steam jet tests using particle image velocimetry were conducted in order to verify the CFD methods. Spread of steam jet could be visualized. Shapes of steam jet obtained by CFD were almost the same as those by tests. The spread angle of free jet were investigated using CFD, and we have found that the spread angle strongly depends on the inlet pressure. This is thought as the different tendency from Established Standards.

Key concepts: Computational fluid dynamics, Jet (fluid), Particle image velocimetry, Mechanics, Inlet, Water jet, Materials science, Environmental science

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Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet — Research Paper | ScholarLens