CAJ | 학술논문

对转桨扇开式转子发动机性能计算的难点在于对转桨扇部件的性能计算。传统方法是将对转桨扇简化处理为涡轮螺桨进行计算，但精度较低。本文基于传统涡轮螺桨性能模拟方法，考虑前排桨扇出口气流对后排桨扇的影响，对前、后排桨扇进行独立建模，建立了开式转子发动机对转桨扇部件级性能计算模型，并使用美国NASA风洞试验数据进行验证。结果表明，对转桨扇性能模型计算精度较高，采用此模型可较准确地模拟不同设计参数和不同控制规律下的对转桨扇性能，并评估其对开式转子发动机总体性能的影响。
대전장선개식전자발동궤성능계산적난점재우대전장선부건적성능계산。전통방법시장대전장선간화처리위와륜라장진행계산，단정도교저。본문기우전통와륜라장성능모의방법，고필전배장선출구기류대후배장선적영향，대전、후배장선진행독립건모，건립료개식전자발동궤대전장선부건급성능계산모형，병사용미국NASA풍동시험수거진행험증。결과표명，대전장선성능모형계산정도교고，채용차모형가교준학지모의불동설계삼수화불동공제규률하적대전장선성능，병평고기대개식전자발동궤총체성능적영향。
The prop-fan performance calculation is the most difficult part of the performance prediction of open rotor engine with counter-rotating prop-fan. To simplify a prop-fan as a propeller is a usually used method which is not so precise. Based on the traditional method, considering the influence of outlet airflow from the front blades on the rear blades, the front model and rear model were built separately. Then the open rotor engine counter-rotating prop-fan component performance model was established and demonstrat- ed by wind tunnel test data from NASA. The counter-rotating prop-fan model was proved to be precise. With this model, various design parameters and different performance under control laws could be precisely simulated, and its influence on the overall performance of open rotor engine could be evaluated.