多级离心压气机变工况性能预估及S_2流面矩阵解

PERFORMANCE PREDICTION OF MULTI-STAGE CENTRIFUGAL COMPRESSOR AT DESIGN AND OFF-DESIGN CONDITIONS AND SOLUTION OF THE FLOW ON S_2 STREAM SURACE BY MATRIX METHOD

多级离心压气机变工况性能预估及Ｓ＿２流面矩阵解秦立森，赵晓路（中国科学院工程热物理研究所北京１０００８０）关键词多级离心压气机，性能预估，Ｓ２流面利用数值计算对多级离心压气机在设ｈ和ｌ「设计工况下的性能进行预测和分析的方法，比较快速、经济。国内外关十...

As a part of the system of computer design and analysis for multi-stage centrifugal compressor, a numerical method and computer code for performance prediction of multistage centrifugal compressor at design and off-design conditions have been presented firstly. A new code for solving the flow on S2 stream surface by matrix L- u resolution method has also been developed. As an example, a three-stage industrial blower fan is calculated and the results are close to the design parameters. Detail analysis of performance characteristics will be helpful to predict and assess the work condition of the every stage and of over all compressor, and to improve the design plan.