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本文首次以数值计算,理论分析以及试验分析的综合手段探讨叶片端弯的气动机理,分析表明;端弯会导致整个流场再分布,主流场变化可能是影响叶片性能改进的重要因素。
In this paper, the aerodynamic mechanism of blade end bending is discussed for the first time by means of numerical calculation, theoretical analysis and experimental analysis. It is shown that the end-bending results in the redistribution of the entire flow field. The variation of the main flow field may be an important factor affecting the blade performance improvement.