A high bypass flow turbofan engine in which the fan is driven by a fan turbine uncoupled from the core engine so that a lower speed can be used to drive a fan blade that is larger in diameter than the prior art fans. A low pressure compressor is driven by a low pressure turbine, ...
turbofan (ˈtɜːbəʊˌfæn) n 1.(Aeronautics) Also called:high bypass ratio enginea type of by-pass engine in which a large fan driven by a turbine and housed in a short duct forces air rearwards around the exhaust gases in order to increase the propulsive thrust ...
2) high bypass ratio 大涵道比 1. Fan/compressor aero design technologies for the development ofhigh bypass ratioturbofans are summarized,and their challenges on our development of high performance turbofan are analyzed. 对用于大型客机的大涵道比涡扇发动机的风扇/压气机气动设计技术现状及其发展趋势进行了...
An Ultra high bypass turbofan Propulsion Simulator (UPS) was designed and built to evaluate candidate fan system configurations for current and future applications. This simulator can accommodate fans of nominally 0.60 meter tip diameter. The inlet, nacelle, exhaust system and the first stage of the...
DesignofPerformanceandCycleParametersofHighBypassRatioTurbofan 沈锡钢/中航工业沈阳发动机设计研究所 导 读:大涵道比涡扇发动机采用高涵道比、高总增压比、高涡轮前温度.在总体性能和循环参数选取时应根据 各参数的相互影响进行优化设计.要考虑包括安装条件、设计、材料、工艺水平限制.还要综合平衡性能、可靠 性、耐久性...
power generationbleed valvesThe paper presents the evaluation of the performance of various aeroderivative gas turbine models (AGTM) derived from a high bypass turbofan engine (HBTE). The objective of the study is to determine the performance and suitability of the developed AGTM for power ...
A scale model test of high-bypass-ratio separated exhaust nozzle was conducted on the jet noise test facility for simulating a dual-stream hot flow to provide far-field noise characteristic of the turbofan engine. A baseline axisymmetric nozzle and four chevron nozzle were tested and analyzed to...
High by-pass ratio and some low by-pass ratio turbofan engines are not equipped with IGVs, and swirl can in effect change the angle of attack of ... N Fredrick,M Davis - Asme Turbo Expo Asme Turbo Expo Asme Turbo Expo 被引量: 0发表: 2012年 Optimal sensors selection in gas path dia...
Metal alloy fan blades reinforced with a metal matrix composite for enhancing stiffness of the fan blades without a significant weight penalty, and which are suitable for use in high bypass turbofan engines. The metal matrix composite is bonded to each fan blade near its root so as to increase...
Keywords:in—flightthrustdetermination;highbypassratioturbofanengine; performance;flighttest 供依据,而且能够为发动机设计单位提供改进建议。 更重要的是通过飞行试验可以获取动力装置在不同 工作情况下的性能指标——安装净推力及基于安装 净推力的动力装置油耗,从而得到实际飞行条件下的 飞机极曲线,为飞机设计单位提供验...