Aerodynamic Technology Integration on the TP400 and E3E Core Compressor

Modern axial compressor stages need to be designed at increasingly higher aerodynamic stage loading, while the performance required has to be improved further. A new family of compressors has been developed over the past years incorporating novel aerofoil concepts and taking into account the strongly three-dimensional character of the flow field. In an approach of building a family of highly efficient compressors for a range of various applications and pressure ratios, the TP400 and Engine3E (E3E) core compressors were designed and tested. Integrating the technology of these two machines the E3E compressor achieved a pressure ratio and efficiency in only nine stages, which is unique for contemporary designs. The present paper describes the general family concept, the elements of technology being integrated, and also some results of numerical design studies as well as test results of both compressors. The performance of compressors with reduced stage count and increased loading is primarily determined by three-dimensional end wall flow phenomena. Therefore, special emphasis is put on the numerical analysis of aerofoil features and cavities along the boundaries of the main flow path, which represent the challenging elements of the design.      «

Modern axial compressor stages need to be designed at increasingly higher aerodynamic stage loading, while the performance required has to be improved further. A new family of compressors has been developed over the past years incorporating novel aerofoil concepts and taking into account the strongly three-dimensional character of the flow field. In an approach of building a family of highly efficient compressors for a range of various applications and pressure ratios, the TP400 and Engine3E (E3...     »