Influence of Turbulators in Blade Cooling Passages on Film Hole Discharge Coefficients  

作　　者：H.-P. SCHIFFER J. TAEGE F. HASELBACH 

机构地区：[1]Rolls-Royce Deutschland, Eschenweg 11, D-15827 Dahlewitz, Germany,Rolls-Royce Deutschland, Eschenweg 11, D-15827 Dahlewitz, Germany,Rolls-Royce Deutschland, Eschenweg 11, D-15827 Dahlewitz, Germany

出　　处：《Journal of Thermal Science》2004年第3期245-254,共10页热科学学报（英文版）

摘　　要：This paper details the results of a joint project between Rolls-Royce Deutschland (RRD) and the Northwestern Polytechnical University of China (NWPU). The objective of the project was the determination of the influence of tabulators in turbine blade cooling passages on film hole discharge coefficients (Cd coefficients). A large-scale plexiglas model was used by the NWPU to measure the turbulator influence on Cd coefficients for a wide range of different geometrical parameters, Reynolds numbers and cooling flow off take ratios. RRD specified the comprehensive test matrix and analysed the test data. The CFD code FLUENT was used by RRD for numerical simulation of the test cases with the main objective to support the interpretation of observed trends. Both, experimental and numerical results will be presented in this paper for a selection of test configurations.This paper details the results of a joint project between Rolls-Royce Deutschland (RRD) and the Northwestern Polytechnical University of China (NWPU). The objective of the project was the determination of the influence of turbulators in turbine blade cooling passages on film hole discharge coefficients (Cd coefficients). A large-scale plexiglas model was used by the NWPU to measure the turbulator influence on Cd coefficients for a wide range of different geometrical parameters, Reynolds numbers and cooling flow off take ratios. RRD specified the comprehensive test matrix and analysed the test data. The CFD code FLUENT was used by RRD for numerical simulation of the test cases with the main objective to support the interpretation of observed trends. Both, experimental and numerical results will be presented in this paper for a selection of test configurations. Keywords film hole discharge coefficient - turbulator - blade cooling CLC number TK124

关 键 词：film HOLE DISCHARGE COEFFICIENT TURBULATOR BLADE cooling. 

分 类 号：TK14[动力工程及工程热物理—热能工程]