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畸变范围对跨声速压气机流场影响的数值模拟

, PP. 74-77

Keywords: 总压畸变范围,压气机,数值模拟,非定常

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Abstract:

采用全流道非定常数值模拟,对不同进口总压畸变范围条件下的跨声速压气机流场进行求解,分析畸变范围对压气机性能的影响,研究了动叶内激波结构和强度与进口畸变条件的关系、静叶根部和顶部附近流场参数变化情况,以及畸变流场对静叶通流能力的影响.研究结果表明:畸变度相差不大时,随着畸变范围的扩大,压气机性能下降,扰动在动叶旋转过程中所需的衰减时间增加,受畸变流体影响的静叶流道数对应增大.

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