关键词: 层流稳态火焰面模型, 火焰面生成流形, 火焰面坐标变换, 建表参数形式

Abstract: Application of flamelet model can lead to great reduction in computational cost through dimensional reduction of chemistry reacting system during combustion simulation. Steady laminar flamelet model was introduced into plan flame simulation, with both parametrization form (Z,χZ) and (Z,Yc) applied. A general flamelet transformation was performed to explain the effects of different parametrization strategies to flamelet modeling accuracy by analyzing manifolds characteristic for planar flames. Solutions obtained by direct numerical simulation (DNS) were introduced as a reference to verify modeling accuracy. Comparisons between solutions obtained by different parametrization strategies show that application of (Z,Yc) parametrization form can achieve more accurate solutions close to the DNS ones than (Z,χZ) form.

Key words: steady laminar flamelet model, flamelet generated manifold, flamelet generated transformation, flamelet parametrization strategy