期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：1
页码：782
DOI：10.15680/IJIRSET.2017.0601078
出版社：S&S Publications
摘要：This paper explores the effect of including a perforated disk at the air inflow as a method to improve theturbulence, the mixing and the combustion phenomena. This paper uses the geometry of a conventionally used simpleburner. The analysis is performed with the help of Fluent 6, ANSYS CFX. As turbulence models, Reynolds AveragedNavier-Stokes equations (RANS) are used. The combustion processes are modelled with the help of Eddy-dissipationmodel. The paper presents four case studies. Out of these, the two main studies were based on two meshes (course andfine, respectively). In both the case studies the effect of including perforation at the air inlet was studied. The results forboth the studies were evaluated by observing three different parameters: turbulence, thermal performance, andemissions. The results show that the inclusion of a perforation at the inflow of air does not increase the turbulenceintensity much compared to the case in which it is not included. It is also concluded that the addition of perforationresults affects the mixing procedure. Moreover, it is found relatively lower temperature is predicted in the case thatperforation is added than in the case that it is not. Lastly, the simulation results show that coarse meshes predict slightlyrelatively higher temperatures and emissions compared to fine meshes.
