Comparision of Turbulence Models in Two-dimensional V-gutter Flameholder Flow Field

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Cui, Ronghao^1 ; Fan, Weijun^1 ; Zhang, Rongchun^1 ; Lei, Hongwei^1 ; Xu, Hanqing^1

National Key Laboratory of Science and Technology on Aero-Engines Aero-Thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing

100191, China^1

关键词: Comparision;    Field distortions;    Prediction performance;    Recirculation zones;    Velocity profiles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/2/022034/pdf
DOI  :  10.1088/1757-899X/439/2/022034

来源: IOP

【 摘 要 】

In this paper, nine common turbulence models are used to numerically simulate the flow field before and after the flame stabilizer. Comparing the flow velocity, normal velocity, vorticity and recirculation zone length between experiments and simulations, it is found that the SA model and the k-kl-ω model have good prediction performance for different parts of the simulation results. At the same time, it is found that the flow in the numerical simulation is more sensitive to the flow field distortion and the separation occurs before the experimental results. The velocity profile obtained by numerical simulation recovers more slowly as the flow develops. Compared with the normal velocity, the simulation results of the streamwise velocity distribution agree well with the experimental results.