Streamline curvature is still a powerful method in predicting the performance of turbomachines whose results will be more realistic if a good combination of losses and deviation is incorporated in the calculations. A streamline curvature through flow numerical approach is modified to better approximate the flow field and performance of a single stage transonic compressor by incorporating shock and profile losses using previous correlations. Deviation is estimated on the basis of several correlations and results are then compared with the present experimental data. Looking at the effect of above mentioned methods on design and off-design performance of compression system, it is possible to recommend that a suitable combination of these methods be incorporated in the solution procedure.

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