基于迁移学习的离心压气机气动噪声空间辐射特性预测

刘帅凝,展旭,刘晨,王贵新

Prediction of spatial radiation characteristics of aerodynamic noise in centrifugal compressors based on transfer learning

Shuaining LIU,Xu ZHAN,Chen LIU,Guixin WANG

表 3 基于试验结果与数值仿真结果的总声压级对比

Tab.3 Comparison of OASPL using experimental results and numerical simulation results

监测点 OASPLt/dB OASPLs/dB $\varDelta $/dB A1 140.1 135.0 −4.9 A2 142.1 142.6 +0.5 A3 140.3 136.1 −4.2 A4 141.2 139.7 −1.5 A5 138.8 136.3 −2.5 平均值 140.6 138.9 −1.7