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The Emergence of the Turbofan Engine
2000If you have looked out the window of an airplane lately, you may have noticed that jet engines are gradually getting shorter and fatter. You will see 737s, the most common airliner in service, with two types of engines of distinctly different shapes. The older models have long, stovepipe-shaped engines under the wings, where the newer ones (or older ...
George E. Smith, David A. Mindell
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Design and verification of a turbofan swirl augmentor
14th Joint Propulsion Conference, 1978The paper discusses the details of the design and verification testing of a full-scale turbofan 'swirl' augmentor at sea level and altitude. No flameholders are required in the swirl augmentor since the radial motion of the hot pilot gases and subsequent combustion products provides a continuous ignition front across the stream.
William J. Egan, James H. Shadowen
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Aircraft Engineering and Aerospace Technology, 1993
A recent two‐line news item in the International Herald Tribune highlighted an important aspect of Russia's interest in developing cryogenic‐fuelled aircraft. The item read simply “The airport in Vladivostok, in far eastern Russia, closed down on Tuesday because it had run out of fuel.” The air routes to Vladivostok from Moscow and other major Russian ...
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A recent two‐line news item in the International Herald Tribune highlighted an important aspect of Russia's interest in developing cryogenic‐fuelled aircraft. The item read simply “The airport in Vladivostok, in far eastern Russia, closed down on Tuesday because it had run out of fuel.” The air routes to Vladivostok from Moscow and other major Russian ...
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Digital Control Brings Large Turbofan Benefits to the Regional Jetliner Turbofan Market
Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, 1994In keeping with the general industry trend of applying Full Authority Digital Electronic Control (FADEC) technology to small gas turbine engines, Textron Lycoming and Chandler Evans Division of Coltec Industries have developed and qualified a single channel control system for use on the Textron Lycoming LF507-1F turbofan engine.
Patterson B. Sisson, David K. Faymon
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Turbofan-engine noise suppression.
Journal of Aircraft, 1968Program for perceived noise levels reduction on ground of turbofan powered commercial transport by acoustically absorptive lining of ...
ROBERT E. PENDLEY, ALAN H. MARSH
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Distributed Control of Turbofan Engines
45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009Abstract : The purpose of this paper is to develop control theoretic concepts for distributed control of gas turbine engines, and develop a dynamic engine model incorporating distributed components in compressor dynamics, engine cycles, and engine control.
Mehrdad Pakmehr +6 more
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Thermodynamic Analysis of Turbofan Engine
Volume 1: Turbo Expo 2005, 2005The present work deals with a detailed parametric thermodynamic analysis of all the possible configurations of turbofan engine (two and three spool with or without mixer and/ afterburner) employing transpiration cooling technique for turbine blade cooling.
R. Yadav +2 more
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Volume 1: Turbo Expo 2005, 2005
Smaller smarter un-manned air vehicles (UAV’s) and missiles are being proposed and developed to function in a variety of roles previously performed by larger manned aircraft and limited range missiles. The endurance and stealth demanded of such advanced vehicles requires small turbofan engines possessing relatively higher power density combined with ...
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Smaller smarter un-manned air vehicles (UAV’s) and missiles are being proposed and developed to function in a variety of roles previously performed by larger manned aircraft and limited range missiles. The endurance and stealth demanded of such advanced vehicles requires small turbofan engines possessing relatively higher power density combined with ...
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Ice crystal ingestion by turbofans
2021This Thesis will present the problem of inflight icing in general and inflight icing caused by the ingestion of high altitude ice crystals produced by high energy mesoscale convective complexes in particular, and propose a new device to prevent it based on dielectric barrier discharge plasma. Inflight icing is known to be the cause of 583 air accidents
Manuel A. Ríos Pabón, Young I. Cho
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LPV MODELING OF A TURBOFAN ENGINE
IFAC Proceedings Volumes, 2005Abstract This article describes the application of quasi-LPV modeling techniques to an industrial military turbofan engine simulator developed by Snecma Moteurs, the French aerospace propulsion company. Two approaches are used, classical Jacobian linearization and velocity based linearization. First, we present briefly the theoretical aspects of both
Luc Reberga +3 more
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