Results 71 to 80 of about 17,951 (234)
Turboprop Cargo Aircraft Systems study, phase 1 [PDF]
The effects of advanced propellers (propfan) on aircraft direct operating costs, fuel consumption, and noiseprints were determined. A comparison of three aircraft selected from the results with competitive turbofan aircraft shows that advanced turboprop ...
Hewell, J. G., Jr. +5 more
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Change of temperature field in the depending mixing chamber on the bypass ratio
Авіаційно-космічна техніка та технологіяThe mixing chamber of a turbofan jet engine with an additional turbofan unit is the object of this study. The subject of the research is the influence of the bypass ratio on the formation of the temperature field in the mixing chamber before the turbofan
Yurii Tereshchenko, Illia Yudin
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Preliminary design study of a quiet, high flow fan (QHF) stage [PDF]
Concepts selected to reduce fan generated noise in a turbofan are presented. Near-sonic flow at the fan inlet to reduce upstream propagated noise and the use of long-chord vanes to reduce downstream noise is discussed.
Beguhn, A. A. +4 more
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Integrated control system for a gas turbine engine [PDF]
, 1981 A control system for a turbofan engine receives signals from a number of engine sensors and from the engine operator, and generates control signals. One control signal regulates the fan exhaust nozzle area in order to control inlet throat Mach number to ...
Beitler, R. S. +3 more
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Hangkong gongcheng jinzhan, 2018 In order to improve the competitiveness, optimizing the fuel economy and competitiveness of civil turbofan engines is becoming the research highlights recently.
Xue Bingjing, Li Hualei, Tan Zhiyong
doaj +1 more source
Design and performance of duct acoustic treatment [PDF]
, 1991 The procedure for designing acoustic treatment panels used to line the walls of aircraft engine ducts and for estimating the resulting suppression of turbofan engine duct noise is discussed.
Kraft, R. E., Motsinger, R. E.
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A generalized computer code for developing dynamic gas turbine engine models (DIGTEM) [PDF]
This paper describes DIGTEM (digital turbofan engine model), a computer program that simulates two spool, two stream (turbofan) engines. DIGTEM was developed to support the development of a real time multiprocessor based engine simulator being designed ...
Daniele, C. J.
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Analysis of temperature distribution in the annular mixing chamber of a gas turbine engine
Авіаційно-космічна техніка та технологіяThe object of this research was the mixing chamber of a turbofan engine. The subject of this study was the thermogasdynamic processes in the mixing chamber of the turbojet engine before the turbine of the turbofan stage.
Illia Yudin
doaj +1 more source
Study of unconventional aircraft engines designed for low energy consumption [PDF]
A study of unconventional engine cycle concepts, which may offer significantly lower energy consumption than conventional subsonic transport turbofans, is described herein.
Hirschkron, R. +2 more
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Effects of biofuels properties on aircraft engine performance [PDF]
, 2015 Purpose-The purpose of this paper is to examine the effects of heat capacity and density of biofuels on aircraft engine performance indicated by thrust and fuel consumption.
Kipouros, Timos +2 more
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