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前言对燃气轮机组整个通流部分来说,进、排气管、中间过渡管的轴向尺寸,几乎占整个通流部分有效轴向尺寸的1/2——2/3。因此对燃气轮机进、排气管、中间过渡管的精心设计至关重要。它的尺寸大小和空气动力性能的优劣,不仅直接影响到整个机组的体积、重量,外观等指标,而且对燃气轮机的效率和气动性能有着决定性的影响。可是目前还没有一套完善成熟的设计方法,只通过计算不需试验就能满足千变万化的设
Introduction The axial size of the intake, exhaust and intermediate transition tubes for the entire flow section of a gas turbine unit accounts for almost one-half to two-thirds of the effective axial dimension of the flow passage. Therefore, the gas turbine into the exhaust pipe, the middle of the transition tube carefully designed is essential. Its size and aerodynamic performance advantages and disadvantages, not only directly affect the volume, weight, appearance and other indicators of the entire unit, but also on the gas turbine efficiency and aerodynamic performance has a decisive impact. However, at present, there is no set of perfect and mature design methods that can only meet the ever-changing needs without calculation