47   Artículos

 
en línea
Jan Erik Zeriadtke, Joël Martin and Viola Wartemann    
The performance of hybrid rocket engines is significantly influenced by the fuel geometry. Burnback simulations, to determine the fuel surface and fluid volume, are therefore an important tool for preliminary design. This work presents a method for the s... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Evangelos Filippou, Spyridon Kilimtzidis, Athanasios Kotzakolios and Vassilis Kostopoulos    
The pursuit of more efficient transport has led engineers to develop a wide variety of aircraft configurations with the aim of reducing fuel consumption and emissions. However, these innovative designs introduce significant aeroelastic couplings that can... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
David I. Barton, Cesare A. Hall and Matthew K. Oldfield    
Contrails are responsible for a significant proportion of aviation?s climate impact. This paper uses data from the European Centre for Medium-Range Weather Forecasts to identify the altitudes and latitudes where formed contrails will not persist. This re... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Calvin Nguyen and James C. Thomas    
Hybrid rocket engine (HRE) performance is dependent on fuel/oxidizer selection and fuel grain geometry. A literature review was performed to identify key trends and findings related to the application of the additive manufacturing (AM) of fuel systems fo... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Yangjing Wang, Jinquan Huang, Muxuan Pan and Wenxiang Zhou    
The variable cycle engine switches working modes by way of changing variable-geometry components to achieve the dual advantages of high unit thrust and low specific fuel consumption. Due to the lack of a large amount of rig test data and the complex mode... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
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... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Veronica Vigna and Massimo Figari    
The harvesting of wind energy and its transformation into a thrust force for ship propulsion are gaining in popularity due to the expected benefit in fuel consumption and emission reductions. To exploit these benefits, a proper matching between the conve... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Tsuyoshi Oishi, Mitsuru Tamari and Takashi Sakurai    
Hybrid rockets are safe and inexpensive; however, boundary-layer combustion poses a problem in achieving a fuel regression rate equivalent to that of solid propellants. The fundamental combustion conditions, such as the fuel regression rate of LT421, a p... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Van Chien Pham, Jeong Kuk Kim, Won-Ju Lee, Su-Jeong Choe, Van Vang Le and Jae-Hyuk Choi    
Piston bowl geometry plays an important role in the fuel/air mixing quality which has a direct influence on the performance and emission characteristics of the engine. This work studied the effects of piston bowl geometry on the combustion and emissions ... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Jana Barabás, Vojislav Jovicic and Antonio Delgado    
This work deals with the numerical investigation of a three-dimensional, laminar hydrogen-air diffusion flame in which a cylindrical fuel jet is surrounded by in-flowing air. To calculate the distribution of gas molecules, the model solves the species co... ver más
Revista: Applied Sciences    Formato: Electrónico

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