摘要
针对一种射流元件控制通道的复杂结构 ,采用分块对接技术和网格“融合”技术生成计算网格 ,并运用五步显式格式的 Runge-Kutta法和多重网格法对含全 N-S方程、RNG k-ε湍流模型和两层分区壁面模型的流动模型进行数值求解。通过对控制通道内部流动的数值模拟和流场特性分析 。
The multi-block patching and grid merging technique are adopted to generate computation grid for the complex structure of a jet device control channel. A Runge Kutta method with 5 stage explicit scheme and a multi-grid method are applied to solve the flow model, which includes the whole N S equation, RNG k-Ε turbulence model and two layer zonal wall model. On the basis of numerical simulation and fluid field analysis, an improved scheme to the structure of control channel is put forward.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2002年第1期31-35,共5页
Chinese Journal of Computational Mechanics