| SUN Yi,GE Ning,SHU Jie.Research on Coupled Throughflow Calculation of Turbofan Engine Low-pressure Parts[J].航空发动机,2018,44(3):26-30 |
| Research on Coupled Throughflow Calculation of Turbofan Engine Low-pressure Parts |
| DOI： |
| Key Words:circumferentially averaged coupled component component matching transition section through flow model turbofan |
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| Abstract:Purpose of this paper is studying influence of component matching and transition geometric parameter on engine overall
performance. It is in accordance with parts of a turbofan engine,such as fan,low-pressure turbine,internal and external bypass,mixing
section and nozzle. On the basis of circumferentially averaging Navier-Stokes through-flow governing equations,time marching finite volume
method was adopted, every component performance calculation parameter along the passage was compared to experiment. The results
indicate that, in design point, the max error of characteristic parameters between calculation and experiment data of every section along
engine is within 5%. It shows that the throughflow coupling calculation method is able to predicate engine overall performance quickly and
improve matching relationship of every part. Therefore, this method is valuable in preliminary design stage of engine. |
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