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Benshan Liu, Yongsheng Gao, Liang Gao, Junming Zhang, Yanhe Zhu, Xizhe Zang and Jie Zhao
Turbojet engines have a slow response and require mechanical assistance to perform vertical take-offs and landings. In this paper, we propose a vertical take-off and landing (VTOL) aircraft that contains one-dimensional thrust vectoring nozzle modules to...
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Grigore Cican, Tiberius-Florian Frigioescu, Daniel-Eugeniu Crunteanu and Laurentiu Cristea
This paper explores the implementation of an ejector to a micro turbojet engine and analysis of the advantages in terms of acoustic and thrust/fuel consumption. Starting with the analytical equations and a series of numerical simulations, the optimal eje...
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Ladislav Fozo and Rudolf Andoga
One way to efficiently control the fuel flow of small turbojet engines is to use direct control of the speed of a suitable electric fuel pump, as opposed to using relief valves. Brushless drive electric (BLDC) motors are suitable for this application, es...
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Hideyuki Taguchi, Kenya Harada, Hiroaki Kobayashi, Motoyuki Hongoh, Daisaku Masaki and Shunsuke Nishida
This study investigated a pre-cooled turbojet engine for a Mach 5 class hypersonic transport aircraft. The engine was demonstrated under takeoff and Mach 2 flight conditions, and a Mach 5 propulsion wind tunnel test is planned. The engine is composed of ...
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Kaleab Fetahi, Sharanabasaweshwara A. Asundi and Arthur C. Taylor
Presented herein is a comparative performance analysis of a novel turbofan engine with an auxiliary combustion chamber, nicknamed the TurboAux engine, against a turbojet engine, and a low bypass ratio turbofan engine with an afterburner is presented. The...
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Francisco Villarreal-Valderrama, Patricia Zambrano-Robledo, Diana Hernandez-Alcantara and Luis Amezquita-Brooks
Turbojets require variable exhaust nozzles to fit high-demanding applications; however, few reports on nozzle control are available. The purpose of this paper is to investigate the possible advantages of an exhaust gas control through a variable exhaust ...
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V?l?dymyr Kudryavtsev,Borys Strigun,Volodymyr Shmyrov,Vasiliy Loginov
Pág. 6 - 16
In order to maintain the competitive advantage of the medium short take-off and landing transport aircraft, the task must be solved of ensuring take-off and landing on the ground runways with a length of 600?800 m when installing a turbojet engine.W...
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Rudolf Andoga, Ladislav Fozo, Radovan Kovács, Károly Beneda, Tomá? Moravec and Michal Schreiner
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Rudolf Andoga, Ladislav Fozo, Martin Schrötter, Marek Ce?kovic, Stanislav Szabo, Róbert Bréda and Michal Schreiner
The methodology presented in this paper is directly intended for application in the area of turbojet engines. This paper presents the design of an automated system which can create diagnostic information using data from an infrared thermal camera, utiliz...
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Arnold Escobar Garzón, Rafael Mauricio Cerpa Bernal, Janusz Piechna, María Camila Rico Rodríguez
Pág. 56 - 65
El artículo de investigación está enfocado en los cálculos térmicos y de dinámica de gases de un turborreactor, modificado con un rotor de onda. Esta serie de cálculos son el primer paso a seguir en el diseño y construcción de cualquier máquina térmica; ...
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Dariusz Kozak and Pawel Mazuro
Current commercial and heavy-duty powertrains are geared towards emissions reduction. Energy recovery from exhaust gases has great potential, considering the mechanical work to be transferred back to the engine. For this purpose, an additional turbine ca...
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Mario Leonardo Erario, Maria Grazia De Giorgi and Radoslaw Przysowa
Microturbines can be used not only in models and education but also to propel UAVs. However, their wider adoption is limited by their relatively low efficiency and durability. Validated simulation models are required to monitor their performance, improve...
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James Large and Apostolos Pesyridis
In this study, the on-going research into the improvement of micro-gas turbine propulsion system performance and the suitability for its application as propulsion systems for small tactical UAVs (<600 kg) is investigated. The study is focused around the ...
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Yuriy Yu. Tereshchenko,Yuriy M. Tereshchenko,Alexander Sklyarov,Ekaterina Doroshenko,Pavlo Humeniuk
Pág. 27 - 31
The purpose of this work is to estimate the aerodynamic characteristics of the stepped nacelle of a gas turbine engine with a turbofan unit. The research was based on the method of model physical experiment. The wind tunnel applied for the study was prov...
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Yibing Xu, Lei Gao, Ruizhe Cao, Chong Yan and Ying Piao
Currently, an increasing number of designers have begun to pay attention to a new paradigm for evaluating the performance with full engine 3-dimensional computational fluid dynamics (3D CFD) simulations. Compared with the traditional component-based perf...
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Edward Rokicki, Radoslaw Przysowa, Jerzy Kotkowski and Pawel Majewski
Magnetic sensors are widely used in aeroengines and their health management systems, but they are rarely installed in the engine hot section due to the loss of magnetic properties by permanent magnets with increasing temperature. The paper presents and v...
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Mohammad Abbas and David W. Riggins
The global control volume-based energy utilization balance for an aerospace vehicle is extended to allow for the analysis of jet-propelled vehicles. The methodology is first developed for analyzing the energy utilization and entropy generation characteri...
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