LES of the Sandia flame series D-F using the Eulerian stochastic field method coupled with tabulated

来源 :中国航空学报(英文版) | 被引量 : 0次 | 上传用户:yaocjs
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this paper, the Eulerian Stochastic Field (ESF) model in the Transported Probability Density Function (TPDF) class model is combined with the Flamelet Generated Manifolds (FGM) model. This method solves the joint probability density function transport equation by ESF method that considers the interaction mechanism between flame and turbulence with high precision. At the same time, by making use of the advantage of the FGM model, this model is able to incorporate the detailed chemical reaction mechanism (GRI 3.0) with acceptable computational cost. The new model has been implemented in the open source CFD suite-OpenFOAM. Validation of the model has been carried out by simulating the Sandia flame series (three turbulent piloted methane jet flames) issued by the National Laboratory of the United States. The accuracy and advancement of the ESF/FGM turbulent combustion model are verified by comparing the LES results of the new model with the rich experimental data as well as the RANS results. The results demonstrate that the model has a strong ability in capturing combustion phenomena such as extinction and re-ignition in turbulent flame, which is essential in the accurate prediction of the combustion pro-cess in real combustion devices, for example, aircraft engines.
其他文献
Introducing flexibility into the design of a vertically flapping wing is an effective way to enhance its aerodynamic performance. As less previous studies on th
With the increasing applications of novel materials and structures in new-generation air-craft, conventional joining techniques in aircraft component assembly a
对虾是最重要的海水养殖产品之一,但是自从1990年代以来,一直受到病害的严重威胁,尤其是对虾白斑综合症病毒(White spot syndrome virus, WSSV),已成为危害对虾养殖的最主要