A probability density function/flamelet method for partially premixed turbulent combustion
A probability density function/flamelet method for partially premixed turbulent combustion
复制标题
部分预混湍流燃烧的概率密度函数/小火焰方法
DOI：
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复制
发表时间：
2000
期刊：
影响因子：
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通讯作者：
D. C. Haworthy
中科院分区：
文献类型：
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作者：
D. C. Haworthy
一种方法制定，以适应详细的化学动力学，现实的湍流/化学相互作用，和部分预混反应物在三维时间相关的设备规模的计算。具体而言，概率密度函数（PDF）方法与预混层流火焰模型相结合，模拟分层充电火花点火往复活塞内燃机的燃烧。在非结构变形网格工程CFD程序中实现了拉格朗日/欧拉混合求解策略。建模问题进行了讨论的背景下，一个典型的问题：一维定容预混湍流火焰传播。本文对一台简单的薄煎饼腔发动机进行了三维时间相关的验证计算。
A methodology is formulated to accommodate detailed chemical kinetics, realistic turbulence/chemistry interaction, and partially premixed reactants in three-dimensional timedependent device-scale computations. Specically, probability density function (PDF) methods are combined with premixed laminar flamelet models to simulate combustion in stratied-charge spark-ignition reciprocating-piston IC engines. A hybrid Lagrangian/Eulerian solution strategy is implemented in an unstructured deforming-mesh engineering CFD code. Modeling issues are discussed in the context of a canonical problem: one-dimensional constant-volume premixed turbulent flame propagation. Threedimensional time-dependent demonstration calculations are presented for a simple pancakechamber engine.