CIVA法による蒸気インジェクタ内の数値流動解析(NP2 軽水炉の設計・建設技術)

概要

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CFD is expected to have a major role to play in optimizing the design of steam injector. However, it is very difficult to simulate hydraulic phenomena in the stream injector because it contains various kinds of problems such as complicated geometries, multiphase flow, free surface, phase change and turbulence. Therefore, for the purpose of numerically simulating hydraulic phenomena in steam injector system, we adopt the advanced CFD techniques such as CIVA and C-CUP methods. In this paper, the analysis algorithm is briefly described. Then, for verifying the validity, we show an example of code verification, an interaction problem between shock wave and a liquid droplet. Then, we discuss the possibility of direct numerical simulation (DNS) with the CIVA based method through a vortex driven inviscid flow. Finally, the numerical analysis of hydraulic behavior in the stream injector is performed.
社団法人日本機械学会の論文
2004-06-22