摘要
钝体燃烧模拟考虑湍流和燃烧相互耦合。在标准k-ε两方程模型下分别采用非预混燃烧模型中化学平衡、稳态小火焰和瞬态小火焰模型,研究不同燃烧模型对组分、温度场以及流场分布的影响。数值模拟结果表明,上述燃烧模型模拟的结果与前人研究成果存在不同程度的差异,稳态小火焰模型优于其它模型,但模拟该燃烧器的燃烧模型尚需进一步完善。
Bluff-body combustion simulation of methane and air was numerically investigated, taking into account of the interaction of turbulent and combustion. In this paper, three combustion models which are chemical equilibrium, steady flamelet and unsteady flamelet are used to compare the species concentrations, temperature and streamline based on standard κ-ε turbulence modeling. The simulation shows that results from each combustion model have different discrepancies with data from other sources. The steady model is much better than others, and the combustion model remains to be improved.
出处
《能源研究与信息》
2009年第2期109-114,共6页
Energy Research and Information
基金
上海市浦江人才计划资助(07pj14072)
上海市重点学科建设项目资助(J50501)
