【摘要】 为了降低某型压气机进气机匣的总压损失,借鉴了作者在流道设计方面的经验,及进气道设计典型结构和设计原则,给出了3种改进的进气机匣结构设计方案,应用Fluent软件,对原方案和3种改进方案进行三维流场CFD计算,对比分析几个方案计算结果,得到了一个比较理想的改进方案,使最终优化改进方案进气机匣的总压损失降低到原方案总压损失的1/4,并提出了进气道设计改进的一些基本方法和有效措施。更多还原

【Abstract】 To lower the total-pressure loss of the inlet casing of a certain compressor,three kinds of improved scheme of inlet casing structure design are given after drawing on the authors’ experience in designing flow passages and on the basis of inlet design typical structure and relevant design principles.By making use of software Fluent three-dimensional flow field CFD(Computational Fluid Dynamics) calculations are conducted of the original scheme and three improved ones.A comparatively ideal improved scheme was obtained after the calculation results of these schemes have been compared and analyzed.As a result,the optimized improved scheme has finally lowered its inlet casing total-pressure loss to 1/4 of that of the original scheme.Some basic methods and effective measures for improving inlet passage design are summarized and proposed.更多还原