Validation of methods to predict functional features of axial compressors within stall

The present study, obtain an axial compressor performance map by using of the software calculations and adaptation of the Moore-Gritter curve in combination This method has high computing speed beside very low-cost and availability. Numerical solution of the rotor is performed by the rotor design process and then the results are plotted as curve fitting Third Grade Maps compressor at three rpm speeds of 70, 90 and 100%. According to the obtained results with the results of the calculation error maximum pressure and mass flow is minimal. Predict point in three rpm work instability, error is encountered. Working around 100, the percentage of error in predicting maximum pressure of 0.4490% and 1.8993% of the Predict mass flow is equal at this point. Working around 90 percent, the error in predicting maximum pressure of 0.6685% and 4.3578% of the Predict mass flow rate was calculated at this point and around 70 percent, the error in predicting maximum pressure of 0.9363 percent and 8.9840 percent predicted mass flow rate at this point is equal.