J121024 格子ボルツマン法を用いた流路設計問題におけるレベルセット法に基づくトポロジー最適化手法の適用([J121-02]解析・設計の高度化・最適化(2))

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  • J121024 An application of level set-based topology optimization method in design of flow channel using the lattice-Boltzmann method

抄録

A topology optimization method for design problem of flow channel is presented. Among these researches, the fluid motion is governed by the Navier-Stokes equation, which often causes numerical oscillation during the optimization process. Due to its nonlinearity, the numerical method such as the Finite Element Method (FEM) cannot be used efficiently for topology optimizations due to its cumbersome ways of moving boundary treatment and its heavy computation loads that undergo repeatedly during the topology changes of the flow field. On the other hand, the Lattice Boltzmann Method (LBM) has attracted as a numerical approach for solving fluid problems. Since the LBM is formulated as a linear and explicit scheme, its computation algorithm becomes much simpler, and is known as a specific scheme for multi-phase and porous flows. In this research, we construct a topology optimization method using the LBM, and use the level set method to represent the clear boundaries of the flow channel in the optimal configuration.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J121024-1-_J121024-4, 2013

    一般社団法人 日本機械学会

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