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Particle-based simulation of jet impingement behaviors

噴流衝突挙動の粒子法シミュレーション

高塚 大地*; 守田 幸路*; Liu, W.*; Zhang, T.*; 中村 武志*; 神山 健司 

Takatsuka, Daichi*; Morita, Koji*; Liu, W.*; Zhang, T.*; Nakamura, Takeshi*; Kamiyama, Kenji

A 3D particle-based simulation code was developed to analyze jet impingement behavior, and the physical models for thermal-hydraulic interactions between molten jets and solid plates used in the code was validated by simulating existing jet impingement experiments. In addition, particle-based simulations were conducted to understand the impingement characteristics of molten MOX fuel jets on SS plates, and the erosion rate of the SS plate was evaluated. The results showed that fuel crusts formed on the plate potentially provide thermal protection and confirmed the effect of the plate erosion rate on the jet diameter under conditions where crust formation is dominant.

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