Multi-dimensional flamelet generated manifolds for combustion simulation with multi-regime flame structure

作者：Wu Yu Xin; Ye Tao Hong^*; Lin Qi Zhao

来源：Journal of Propulsion Technology, 2015, 36(6): 816-823.

DOI：10.13675/j.cnki.tjjs.2015.06.003

• Combustion simulations
• Combustion systems
• Detailed chemistry
• Flamelet generated manifolds
• Lifted flames
• Reference solution
• Strang splitting
• Turbulent flame simulations

Flamelet models have been applied to both laminar and turbulent flame simulations. As for complex combustion systems with multi-regimes, single-dimensional flamelet models based on single flame regime solving cannot reproduce local flame structure accurately. To overcome such deficiencies, a new interactive Z-C multi-dimensional flamelet modeling approach has been developed, which is based on the concept of multi-dimensional flamelet generated manifolds (MFM) proposed by Nguyen et al. Numerical simulation of a laminar lifted flame has been carried out to verify modeling accuracy for this new approach, with DNS solutions obtained using detailed chemistry scheme as references, and has been compared with single-dimensional premixed flamelet generated manifolds approach (premixed FGM). Analyses of different modeling solutions indicate that multi-dimensional flamelet model can capture both non-premixed and premixed characteristic of the multi-regime flame structure, comparing to single-dimensional flamelet models which can capture only one flame regime. Application of this new multi-dimensional flamelet model can lead to modeling accuracy close to DNS reference solutions, with computation efforts reduced by an order of magnitude.

• 出版日期2015
• 单位中国科学技术大学