IGTC-74 Computer Turboengine Test Technology(Session C-7 NEW DESIGN TECHNOLOGIES)

概要

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The purpose of the paper is to present the activity of CLAM in the field of the development of Computer Turboengine Test Technology (CT^3) based on engine models of high 2D and 3D level. The CT^3 bases on the full 3D geometry of whole flow passage, in particular, all blade rows. The initial equations system is 3D Euler unsteady equations system with or without averaging in the middle of axial gaps. The source terms introduced in right parts of equations express the effects of viscous losses, leakages from passage and tip clearances and blowing out of cooling air. The CT^3 allows to simulate the real working processes on various regimes (main and part-load regimes), to predict gas turbine engine performances and influence of major parameters on engine efficiency. It can be used for simulation of transient regimes, radial and angular nonuniform flow influence on engine performances. Detail verification of CT^3 allows to have a new high level quality of engine testing, when the measuring point number equal the point number of numerical grid. Here in any point all parameters are registered and whole flow passage is transparent (it can observe the research physical process in any region on computer display using impressive color graphic system).
社団法人日本ガスタービン学会の論文