AM05-19-002 エネルギー散逸率εの検討と渦崩壊モデルの検証(燃焼・反応流のモデリングと制御1,一般講演)

概要

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Based on DNS databases of the fully developed turbulent premixed flames in three different density ratio cases; ρ_u/ρ_b=7.53, 5.00 and 2.50, while u'/u_L is nearly equal 1, the energy dissipation rate ε was estimated by different definitions. The streamwise evolutions of the energy dissipation rate showed different distributions in the flame brush. Using the energy dissipation rate ε estimated by different definitions, the mean reaction rate model, it is called the Eddy Break Up model, was calculated and model constants were derived in each definition and for each density ratio case. In order to select the most reasonable definition of energy dissipation rate ε, more detailed verification are required.
日本流体力学会の論文
2005-09-05