摘要
通过FLUENT数值模拟软件,选取标准k-ε模型和可实现k-ε模型结合非预混PDF火焰模型对旋流燃烧器的湍流流场进行了研究。对比湍流模型理论构建与实际应用所体现出的差异,发现在强旋流燃烧下,可实现k-ε模型能够更准确的模拟计算旋流燃烧的回流区和速度分布等流动特征。
The turbulence flow field of swirl burner is studied by FLUENT numerical simulation software, choosing Standard k-ε model and Realizable k-ε model combined with nonpremixed PDF flame model.Comparing with the difference between the theoretical and practical application of the turbulence model,it is found that the Realizable k-ε model can simulate the flow characteristics such as the recirculation zone and the velocity distribution of the swirl burner more accurately under the strong swirl combustion.
作者
樊玉光
李年祺
FAN Yuguang;LI Nianqi;College of Mechanical Engineering Xi’an Shiyou University;
出处
《石油化工应用》
CAS
2017年第9期128-131,共4页
Petrochemical Industry Application
关键词
湍流模型
旋流数
旋流燃烧器
回流区
turbulence modeling
swirl number
swirl burner
recirculation zone
