摘要
本文基于滑移网格模型,应用Fluent软件,通过求解三维非定常雷诺平均守恒N-S方程组,对燃气轮机多叶片通道内非定常流动进行了数值模拟,给出了非定常流动情况下级出口烟气轴向速度、径向速度、湍流耗散率、总压和总温随相对叶高的变化规律,得到了一些有益的结论。
This paper is based on the slippage grid model, using the Fluent software to solve three - dimensional Reynolds average conservation N-S equations and doing numerical analysis research of the unsteady flow in the multi-blade passage of the exhaust gas turbine. In this paper, it gives out the variational rules of the flue gas outlet axial velocity, the radial velocity of flue gas, turbulent dissi-pation rate, total pressure and total temperature with the change of the relative blade height and also some useful conclusions have been obtained.
出处
《锅炉制造》
2013年第5期54-57,共4页
Boiler Manufacturing
关键词
增压锅炉
燃气轮机
滑移网格模型
非定常流动
CFD分析
supercharged boiler
exhaust gas turbine
slippage grid model
unsteady flow
CFD analy-sis
