Compressor variable stator vane model performance correction based on backbone map
The model of variable geometry performance for compressor variable stator vane(VSV)was established based on the principle of backbone map.The advantages and applicability of the compressor backbone map were introduced.Based on the compressor backbone map,the VSV model correction method was developed.By adjusting the proportional correction coefficients of the flow coefficient,work coefficient and loss coefficient,the high-precision modeling of compressor performance varying with VSV angle deviation was realized.An automatic optimization method was established,which improved execution efficiency and reduced manual intervention.As a result,compared with the experimental results,the relative error of the model reached a level of less than 0.2％,which verified the correctness and accuracy of the correction method.The correction method by scaling the specific backbone map parameters could be used to the correction of other secondary effects on compressor maps(e.g.Reynolds number effects).
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