Results 21 to 30 of about 14,411 (284)
Acoustic transmission and reflection by a shear discontinuity separating hot and cold regions [PDF]
, 1972 Acoustic transmission and reflection is analyzed for plane waves propagating from a hot moving medium, impinging on a plane shear discontinuity into a cold stationary region.
Candel, S. M.
core +1 more source
Intensification of convective heat exchange of walls of heat pipe of 3D-printed micro-sized turbojet engine [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022 The article considers the solution of the urgent problem of creating a micro-sized turbojet engine using 3D printing. The article describes one of the ways to cool the walls of the heat pipe of a small combustion chamber made of heat-resistant material
A. V. Pobelyansky +2 more
doaj +1 more source
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The article presents the results of solving the problem of defining the engineering concept of a power plant with a bypass turbojet engine based on the gas generator of the serial domestic engine TV7 117 developed by the JSC UEC-Klimov for an advanced ...
Yu. V. Zinenkov +3 more
doaj +1 more source
Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems
International Journal of Turbomachinery, Propulsion and Power, 2020 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.
Dariusz Kozak, Paweł Mazuro
doaj +1 more source
Development of an expendable turbojet engine for the propulsion of an unmanned aerial vehicle [PDF]
FME TransactionsThis paper presents preliminary engineering methodology for the design of expendable turbojets in the range of 400 daN thrust. This class of engines are among biggest used for missiles, typical applications are Harpoon or Storm Shadow missiles and ...
Davidović Nikola +2 more
doaj +1 more source
Ecologic performance and sustainability evaluation of a turbojet engine under on-design conditions
Aviation, 2018 Interest in air transportation in the last decade has seen aviation fleet growth and a rise in the energy consumption of aircraft. In accordance with the latest data, the air transportation sector consumes 7.5% of total oil consumption worldwide.
Yasin Şöhret
doaj +1 more source
Sliding Mode Control for Micro Turbojet Engine Using Turbofan Power Ratio as Control Law
Energies, 2020 The interest in turbojet engines was emerging in the past years due to their simplicity. The purpose of this article is to investigate sliding mode control (SMC) for a micro turbojet engine based on an unconventional compound thermodynamic parameter ...
Khaoula Derbel, Károly Beneda
doaj +1 more source
Aviation, 2019 Micro turbojets can be used for propulsion of civilian and military aircraft, consequently their investigation and control is essential. Although these power plants exhibit nonlinear behaviour, their control can be based on linearized mathematical models
Khaoula Derbel, Károly Beneda
doaj +1 more source
Journal of Thermal Science and Technology, 2018 Fundamental experiments were conducted on a cooling tube with an obstacle using liquid nitrogen as the coolant under a frost-formation condition. The background of this study is the development of a heat exchanger for an air-breathing engine, which cools
Katsuyoshi FUKIBA, Sota SATO
doaj +1 more source
Intelligent Thermal Imaging-Based Diagnostics of Turbojet Engines
Applied Sciences, 2019 There are only a few applications of infrared thermal imaging in aviation. In the area of turbojet engines, infrared imaging has been used to detect temperature field anomalies in order to identify structural defects in the materials of engine casings or
Rudolf Andoga +6 more
doaj +1 more source