J0520201 超臨界流体乱流シミュレーションの数値解法

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  • J0520201 A numerical method applied to turbulent supercritical-fluid flow simulations

抄録

The numerical simulation of turbulent supercritical water flows is presented. In the present method, the supercritical-fluids simulator is coupled with the building-cube method because of its simplicity and efficiency, and a meshless method is implemented as a wall boundary treatment because of its flexibility and adaptability. The implementation of the SST turbulence model has been accomplished to deal with the turbulent supercritical-fluid flows. The supercritical water jet submerged in a subcritical water environment is simulated, which is a typical process of supercritical-fluid flows in the hydrothermal spallation drilling application. First, turbulence model implementation verification is proposed with the classical case of zero pressure gradient flat plate. Then, the effects of temperature and pressure on the behavior of the supercritical water jets are investigated.

収録刊行物

  • 年次大会

    年次大会 2015 (0), _J0520201--_J0520201-, 2015

    一般社団法人 日本機械学会

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