Parameter Survey of Thermally Highly Loaded,Porous and Cooled Multi-Layer Systems for Turbine Blades  

作　　者：Peng Shan Dieter Bohn Jing Ren N.Surken 

机构地区：[1]Department of Jet Propulsion,Beijing University of Aeronautics & Astronautics,Beijing 100083,China [2]Institute of Steam and Gas Turbines,RWTH Aachen,52056 Aachen,Germany

出　　处：《Journal of Thermal Science》2007年第2期181-185,共5页热科学学报（英文版）

摘　　要：This study is an advanced investigation for the cooling of high temperature turbine vanes and blades. The efficient heat exchanging near the surface of a blade may be achieved by forcing a cooling air flow emitting out of a thin layer of the porous metal which is pasted on the structural high strength metal. The contents include the consideration on the computational model of heat transfer through a layer of porous material, the concrete modeling and the analysis of the model, the numerical survey of key parameters for both the two-layer porous materials and the heat transfer fluid flow passing through the model channels. The results revealed that the constructed system is reasonable. Proposed an evaluation formula for the porous material heat transfer efficiency.

关 键 词：heat transfer thermally highly loaded POROUS MULTI-LAYER 

分 类 号：V233.54[航空宇航科学与技术—航空宇航推进理论与工程]