液雾燃烧大涡模拟的应用研究进展  

Recent advances in applicability to large-eddy simulation of spray combustion

作　　者：周力行[1] 李科[1] 王方[2] 宋金瓯[3] 

机构地区：[1]清华大学航天航空学院工程力学系,北京100084 [2]北京航空航天大学热能系,北京100080 [3]天津大学内燃机燃烧国家重点实验室,天津300072

出　　处：《化工学报》2010年第11期2769-2775,共7页CIESC Journal

基　　金：国家自然科学基金项目(50736006);天津大学内燃机燃烧国家重点实验室开放基金项目(K2010-07)~~

摘　　要：液雾燃烧数值模拟在能源、交通、化工冶金和航天航空等工程中有广泛的应用,近年来,大涡模拟研究尤其受到重视,不仅在基础研究领域中,而且在朝着工程应用方向发展,特别是在内燃机燃烧室和燃气轮机燃烧室液雾燃烧数值模拟中的应用。目前液雾燃烧大涡模拟被认为是工程上最有应用前途的CFD数值模拟方法,可以显示流动和燃烧发展的动态过程,而且其统计结果比雷诺平均模拟(RANS)的更精确。但是还存在一些有待解决的问题,主要是亚网格模型和模拟结果的详细实验检验。本文就此领域的研究进展,包括作者最近的研究,进行了简要的评述,讨论了进一步研究的问题。The numerical simulation of spray combustion is widely encountered in power engineering,transportation,chemical and metallurgical,aeronautical and astronautical engineering.In recent years,the large-eddy simulation（LES）becomes more important not only in fundamental studies,but also in engineering application,especially in the modeling of spray combustion in internal combustion engines and gas-turbine combustors.LES can give the detailed development of flow and combustion processes and its statistical results are more accurate than those given by the RANS modeling;hence it is considered as a perspective CFD method.However,some problems,such as the sub-grid scale models and detailed experimental validation,remain to be solved.In this paper,a brief review is presented and some unsolved problems are discussed.

关 键 词：液雾燃烧 大涡模拟 内燃机 燃气轮机 

分 类 号：TK16[动力工程及工程热物理—热能工程]