基于CFD的混排一体化装置性能预测及试验验证

针对混排一体化装置的工作原理及内部流场特性,采用CFD方法仿真了特定转速下的内部瞬态流场、压力等特性,计算了不同转速下的轴功率、吸入/排出压力关系等性能曲线.设计并制造了试验验证装置.结果表明:仿真结果与试验基本一致,该仿真模型和性能预测方法对混排一体化装置的优化设计有一定的指导作用,能够为将来系列化设计及工程应用提供一定的研究基础.

CFD based performance prediction of blend-discharge integrated device and its experimental verification

Aimed at the working principle of the blend-discharge integrated device (BDID) and its internal flow field characteristics, the transient flow field and pressure characteristics were simulated under a specific rotation speed, the performance curves of axial power and suction/discharge pressure were calculated under different rotational speeds with CFD method, and an experimental device was designed and prepared to verify the result of the calculation. The result showed that the simulation result would be consistent basically with test result. This simulation model and the performance prediction method would have a effect of guidance to certain extent for optimization design of BDID and would be able to provide certain investigation basis for the future serialization design and engineering application of this device.