The dynamic model proposed by Charlette et al. represents an interesting alternative to the FSD balance equation to predict the transient growth of a flame kernel. The dynamic wrinkling model coupled to the algebraic Flame Surface Density (FSD) model of Boger et al. is here evaluated for the first time in an internal combustion engine configuration. Preliminary tests enable to evidence practical difficulties when applying the model to this type of complex configuration. Improvements are proposed to adapt the model to the engine configuration. Final simulations are performed on a spark ignition engine configuration, using both the adapted dynamic model and an equilibrium wrinkling formulation. The results are compared to the ones obtained by Robert et al. on the same configuration using the ECFM-LES model solving a FSD balance equation. The dynamic model proves to very well predict out-of-equilibrium values and to account for cycle-to-cycle variabilities, as the model parameter is calculated on the fly. On the contrary, the results obtained using the equilibrium formulation clearly demonstrate that the flame-turbulence equilibrium assumption is not adapted to such configurations.

Charlette等人提出的动态模型。代表FSD平衡方程式的一个有趣替代方法，用于预测火焰核的瞬态增长。动态起皱模型与Boger等人的代数火焰表面密度（FSD）模型耦合。在此，首次在内燃机配置中进行了评估。初步测试可以证明将模型应用于这种类型的复杂配置时的实际困难。提出了一些改进措施，以使模型适合发动机配置。使用适配的动态模型和平衡起皱公式，对火花点火发动机配置进行最终仿真。将结果与Robert等人获得的结果进行比较。使用ECFM-LES模型在相同的配置上求解FSD平衡方程。动态模型被证明可以很好地预测失衡值，并考虑到周期间的差异，因为模型参数是动态计算的。相反，使用平衡公式获得的结果清楚地表明，火焰湍流平衡假设不适合这种构造。