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针对超常规叶轮机械——对转压气机采用5种定常叶排交界面方法,结合实验值对比分析了对转压气机整机性能、近设计工况以及近失速工况流场,以定量研究不同交界面方法应用于叶排交界面的参数传递效果.结果表明:1不同交界面方法计算的整机效率性能差异明显,而压比性能与实验值吻合较好.2近设计工况下,周向守恒法在不同交界面的参数传递连续性相对较好,当地守恒法和完全非匹配混合界面法对下游界面参数的控制作用逐渐增强,一维无反射边界条件和完全非匹配冻结转子法则正好相反.3近失速工况下,一维无反射边界条件和完全非匹配冻结转子法对应的叶片前缘高熵损失区范围明显增大,叶顶主流和间隙溢流交界面扭曲成更靠近上游叶排交界面的弧形.
Aiming at unconventional impeller mechanical - five kinds of stationary leaf row interface method for rotary compressor, the performance of the turbo compressor, the near design condition and the flow condition of near stall condition are compared and analyzed with the experimental data. Different interface methods are applied to the parameter transfer effect at the leaf row interface.The results show that: 1 the efficiency of the whole machine calculated by different interface methods is obviously different, while the pressure ratio performance is in good agreement with the experimental data.2 Under the design conditions, Circumferential conservation method has a relatively good continuity of parameter transfer at different interfaces, and the local conservation method and the completely non-matching hybrid interface method gradually enhance the control of the downstream interface parameters. One-dimensional nonreflective boundary conditions and completely non-matching frozen rotor laws On the contrary.3 The range of high entropy loss in the leading edge of the blade corresponding to one-dimensional non-reflective boundary conditions and the completely non-matched frozen rotor method increases significantly at near-stall conditions, and the interfacial deformation at the tip of the mainstream and the gap overflow distorts more closely The upstream leaf row interface arc.