DNSデータベースを用いた乱流予混合火炎の統計解析(燃焼・反応(1),一般講演)

概要

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To investigate the effect of Lewis number on local burning velocity and local stretch rate, a numerical analysis on local burning velocities and local stretch rates was performed using DNS (Direct Numerical Simulation) databases of statistically steady and fully developed turbulent premixed flames with different Lewis numbers. For different Lewis number, local stretch rates, local tangential strain rates and local flame curvatures indicate a similar tendency: a peak of pdf increases with Lewis number, and a peak of pdf is located at a small positive value. Correlation between local burning velocities and local stretch rates varies with Lewis number.
2008-09-04