Hybrid unsteady RANS and PDF method for turbulent non-reactive and reactive flows

作者：Ge Hai Wen^*; Zhu Min Ming; Chen Yi Liang; Gutheil Eva

来源：Flow, Turbulence and Combustion, 2007, 78(2): 91-109.

DOI：10.1007/s10494-006-9031-9

• unsteady RANS
• PDF method
• finite volume method
• particle method
• unstructured meshes
• turbulent reactive flow

A hybrid unsteady Reynolds-averaged numerical simulation (U-RANS) and probability density PDF) method is developed for turbulent non-reactive and reactive flows. The resulting modeled equations are solved by a consistent hybrid finite volume and Lagrangian Monte-Carlo particle method. Both turbulent non-reactive and reactive flows in a rectangular channel containing a triangular-shaped bluff-body are simulated. One-step and two-step mechanisms for propane/air combustion are used for the reactive case. The time-averaged results are compared with both experimental data and numerical results from the literature using large eddy simulation (LES) and steady RANS. The results of the present method are in good agreement with the experimental data, and they improve the numerical results available in the literature.

• 出版日期2007-3
• 单位中国科学技术大学