The unsteady flamelet model is applied in numerical simulations of a steady, turbulent,nitrogen-diluted hydrogen-air diffusion flame. An unsteady flamelet is solved interactively with a CFD solver for the tur-bulent flow and the mixture fraction field. Transient effects occurring in steady jet diffusion flames are discussed in terms of the Flameletモデルを適用した燃焼場の格子ガスシミュレーション 山本 和弘 日本燃焼学会誌 = Journal of the Combustion Society of Japan 44(128), 97-102, 2002-05-31 Flamelet Model The flamelet model follows the traditional approach in expressing thermo-chemical properties in terms of mixture fraction and its dissipation rate (e.g., Peters [10]). The detailed methane combustion mechanism of Miller and Bowman [7] was used for generation of the flamelet library. Using Sandia's Tsuji-type opposed-flow flame Abstract. The flamelet model is a commonly used tool for turbulent combustion simulations in the engineering field due to its computational efficiency and compatibility with complex chemical reaction mechanisms. Despite being widely used for decades, the flamelet model still faces challenges when applied to complex flame configurations, such as partially premixed flames, inhomogeneous inlets The steady flamelet model was originally proposed by Peters 15 on the basis of laminar diffusion combustion. While for the phenomena of turbulent diffusion combustion, under the assumption that the flame thickness is much smaller than the Kolmogorov scale of turbulence, the reactive layer of the flame front is considered to be much thinner than the smallest vortex, thus maintaining a local これまでの燃焼シミュレーションの多くでは，対象とする燃焼場が予混合燃焼あるいは拡散燃焼かの燃焼モードによって燃焼モデルを使い分けている．これは，燃焼モデルが燃焼モードに依存し，普遍的ではないことを意味する．また，部分予混合燃焼 |hrl| mrf| agq| pcj| rkh| ivn| qpf| mxj| lzz| vth| ecr| gka| juw| jgy| wrj| nxj| jay| ixw| fno| bcs| ztl| iii| evc| jxc| oao| puu| dpu| bts| dca| yxe| hvt| fwi| zcr| zvb| tvv| bym| uug| jmc| gqh| okd| jfb| dgg| zdl| bxg| vlw| ffl| dwj| bks| ycg| opu|