A three-dimensional Navier-Stokes code with standard k-ε turbulence model as well as wall functions is used to compute the flow and heat transfer characteristics for a combined impingement and film cooling configuration.
通过数值模拟,研究了涡轮叶片弦中区所采用的新型双层腔冷却结构的冷却特性,系统分析了冲击气膜组合冷却的流动与换热特性,讨论了冷气进口雷诺数Re、吹风比M以及气膜孔与冲击孔的直径比D/d对组合冷却效果的影响。
Based on the gas-lubricated theory and Navier-Stokes equation of viscous fluids theory, all static parameters of gaseous film formed by available compressed air in the static balancer and related functional relation are determined by the analysis of static character of gaseous film suspending ESG rotator.
通过对支撑静电陀螺仪转子的气膜静态特性进行分析,并根据气体润滑理论和粘性流体动力学中的Navier-Stokes方程,确定了转子静平衡器中工作压缩空气气膜的各项静态技术参数以及函数关系,为静平衡器的设计提供了理论依据。