摘要
本文采用涡量-向量势法,结合常规的 k-ε双方程湍流模型,并运用重新推导的固体壁面涡量边值计算法,对扁平射流煤粉燃烧器内的冷态三维流场进行了数值模拟。计算结果与实验数据相吻合。本文工作证明,用涡量-向量势法求解三维湍流问题是可行的,该法具有不应忽视的优越性,值得进一步开发。
The vorticity-vector potential method and k-ε two-equation turbulence model are applied for numerical simulation of the 3-dimensional isothermal flowfield in a flat jet combustor. A new equation to calculate the values of vorticity components on solid surfaces is introduced. Conditions which should be satisfied in order to define boundary conditions of vector potential are discussed. The computed results agree with the experimental measurements on the whole. It is shown that the vorticity-vector potential method is a capable one possessing many merits for numerical simulation of 3-dimensional turbulent flow.
出处
《力学学报》
EI
CSCD
北大核心
1991年第2期157-164,共8页
Chinese Journal of Theoretical and Applied Mechanics
基金
国家自然科学基金会
关键词
湍流
向量势法
三维
涡量
数值模拟
turbulent flow, 3-dimension, vector potential, computational fluid dynamics
