Research on Quasi-two-dimensional Rapid Aerodynamic Design Method of Axial Compressor
In order to rapidly obtain the aerodynamic design scheme of axial compressors and shorten the design cycle,a quasi-two-dimensional rapid aerodynamic design method based on the multi-streamline theory was established,and the corresponding design programs were developed.To do this,the multi-streamline approach was derived based on the simplified radial equilibrium equation.After multiple stre-amlines were introduced based on one-dimensional mean-line design and they were embedded in physical property calculation software to improve calculation accuracy,it can determine aerodynamic parameters of the flow field at different radial positions,without the need for repeated streamline iterations.By connect-ing with the blade profiling,the geometric model of the compressor was obtained and then subjected to three-dimensional numerical simulation to obtain the flow field details of the initial design scheme.To verify the accuracy of the program and the method,the performance of a single rotor compressor was de-signed and validated based on the design parameters of a transonic fan example.The results show that the geometry and performance characteristic of the designed single rotor meridional flow path basically meet the requirements of the initial design scheme of the axial compressor.The multi-streamline method offers an aerodynamic design scheme more rapidly and stably in the initial design stage of the axial compressor.
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