非平衡ディスク形MHD発電機の境界層を考慮した二次元解析

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タイトル別名
  • Two-Dimensional Simulation of Nonequilibrium Disk MHD Generator Considering Boundary Layer
  • 非平衡ディスク形MHDの発電機の境界層を考慮した2次元解析
  • ヒ ヘイコウ ディスクケイ MHD ノ ハツデンキ ノ キョウカイソウ オ コ

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抄録

The authors newly develop a two-dimensional time-dependent simulation code considering the boundary layer for nonequilibrium disk MHD generator. In the code, the two-dimensional distributions of gas dynamical and electrical quantities in all over the generator on the plane including the boundary layer are calculated time-dependently without classifying the flow into the main flow and the boundary layer. In this paper, at first, the numerical procedure of the code is briefly explained. Next, calculations are performed using the two-dimensional simulation code for the same conditions as used in the experiments and the calculation results are compared with the experimental results and the quasi-one-dimensional time-dependent calculation results in which the displacement thickness of the boundary layer is assumed. As a result, the validity of the two-dimensional simulation code is made clear from the fact that the two-dimensional calculation results agree well with the experimental results. It is also made clear that the quasi-one-dimensional simulation code is not sufficient and the two-dimensional simulation code is required to calculate the performance characteristics of the generator in detail.

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