J056041 確率密度関数法による液相格子乱流中の反応性スカラー拡散の数値計算 : 連続競争反応の場合([J05604]乱流における運動量,熱,物質の輸送現象(4))

概要

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The aim of this study is to elucidate numerically characteristics of a diffusion field with a competitive-consecutive reaction in a liquid grid-turbulence. Numerical simulation for a nearly homogeneous diffusion field of reactive scalars has been conducted by probability density function (PDF) method. PDF method is a one of promising approach for turbulent reacting flows because the chemical source term appears in a closed form. For the molecular mixing, two models (Curl's model and the modified Curl model) are applied. At first, the results of nonreactive field and reactive field of one-step reaction are compared. It is found that the mean concentrations of reactive species become smaller than those of nonreactive species because of consumption by chemical reaction. However, the simulation results overestimate the effect of the chemical reaction as a whole.
一般社団法人日本機械学会の論文
2011-09-11