乱流予混合火炎の直接数値シミュレーション(反応・多相系燃焼・反応(2),一般講演)

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In our past study, we had built DNS databases of fully developed stationary steady turbulent premixed flames with various flame conditions for the turbulent combustion modeling. And we analyzed transport equations for turbulent kinetic energy and turbulent scalar flux, and proposed turbulent combustion models. New inflow turbulence for DNS of turbulent premixed flames was re-constructed. The turbulent intensity is stronger and the integral length scale is smaller than previous conditions of turbulence. DNS of turbulent premixed flames with new inflow turbulence is executing, however, fully developed stationary steady turbulent premixed flames for turbulent combustion modeling have not been obtained. This paper reports the present conditions, such as development of turbulent flames and rising turbulent burning velocity.
2009-09-02