Advanced Compressor Loss Correlations, Part I: Theoretical Aspects

[摘要] Reliable efficiency calculation of high-subsonic and transonic compressor stages requires adetailed and accurate prediction of the flow field within these stages. Despite the tremendousprogress in turbomachinery computational fluid mechanics, the compressor designer stilluses different loss correlations to estimate the total pressure losses and thus the efficiency ofthe compressor stage. A new loss model is presented in this article. Special attention is paidto the shock and profile losses, since they contribute significantly to the total pressure lossbalance, specifically for transonic compressor stages. A new shock loss model is presentedthat calculates the shock position and the shock total pressure losses. The available experimentaldata were used to establish new loss correlations that account for experimentalfindings.

[学科分类] 力学，机械学