Optimization and analysis of TANDEM blade radial compressor

Centrifugal compressors are frequently used in aviation applications where small gas turbines are used, in turbochargers, and in the gas and oil industries. These systems, which are widely used in unmanned aerial vehicles, which are very popular today, are preferred due to their high pressure compression ratio and easy manufacturing, but are seen as an area open to development due to their low efficiency and poor operating range. Although many ideas have been put forward and studies have been carried out to improve the performance of centrifugal compressors, the tandem blade radial compressors, which do not require an additional air configuration for fluid control, have been the most popular. In this study, geometry optimization to increase the pressure ratio of the radial compressor and computational fluid dynamics (CFD) analyses of different designs were performed. In order to ensure the numerical accuracy of the analyses, a radial compressor with experimental results in the literature was taken as a basis and the compressor design was carried out and numerical analysis results were obtained. Seeing that the numerical analysis results obtained were compatible with the experimental results in the literature, the tandem blade radial compressor design was started. Considering the numerical analysis results, the geometric data of the radial compressor were parametricized and the relationships between the input data and output data were determined and interpreted. In the light of this information and interpretations, the geometries of the optimum tandem blade radial compressor were obtained using mathematical algorithms and the numerical analyses of the optimum design were performed. The relationship between optimum tandem blade radial compressor, tandem blade radial compressor and conventional blade radial compressor is investigated and interpreted. Based on the obtained results and geometric analysis, it has been determined that the optimum tandem-blade design exhibited an average of %5.71 higher performance compared to the convetional blade design and %0.3 superior performance compared to the standart tandem-blade design.