Results 11 to 20 of about 1,314,203 (312)
Performance of Rim-Seals in Upstream and Downstream Cavities over a Range of Flow Coefficients
International Journal of Turbomachinery, Propulsion and Power, 2017 This paper presents measurements of CO2 concentration and pressure in a new, highly instrumented and versatile, 1.5-stage gas turbine facility. The rig, which has been specifically designed for investigations related to hot gas ingestion, features ...
Marios Patinios +3 more
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Transient modelling and simulation of gas turbine secondary air system [PDF]
Applied Thermal Engineering, 2020 Abstract The behaviour of the jet engine during transient operation and specifically its secondary air system (SAS) is the point of this work. This paper presents a methodological approach to develop a fast, one-dimensional transient platform for preliminary analysis of the flow behaviour in gas turbine engines secondary air system. For this purpose,
Nikolaidis, Theoklis +2 more
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The Effect of Break Edge Configuration on the Aerodynamics of Anti-Ice Jet Flow
EPJ Web of Conferences, 2015 One of the components of a turboprop gas turbine engine is the Front Bearing Structure (FBS) which leads air into the compressor. FBS directly encounters with ambient air, as a consequence ice accretion may occur on its static vanes.
Tatar V., Yildizay H., Aras H.
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A Multifidelity Aero-Thermal Design Approach for Secondary Air Systems
Journal of Engineering for Gas Turbines and Power, 2021 Abstract The paper presents a multidisciplinary approach for aero-thermal and heat transfer analysis for internal flows. The versatility and potential benefit offered by the approach are described through the application to a realistic low pressure turbine assembly.
Dario Amirante +2 more
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Numerical simulation of a supersonic ejector for vacuum generation with explicit and implicit solver in openfoam [PDF]
, 2019 Supersonic ejectors are used extensively in all kind of applications: compression of refrigerants in cooling systems, pumping of volatile fluids or in vacuum generation. In vacuum generation, also known as zero-secondary flow, the ejector has a transient
Camacho, Sergi +4 more
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Simulation of the Secondary Air System of Aero Engines [PDF]
Volume 1: Turbomachinery, 1992 This paper describes a computer program for the simulation of secondary air systems. Typical flow system elements are presented, such as restrictors, tappings, seals, vortices, and coverplates. Two-phase flow as occuring in bearing chamber vent systems is briefly discussed.
K. J. Kutz, T. M. Speer
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Environmental Impact Assessment, on the Operation of Conventional and More Electric Large Commercial Aircraft [PDF]
, 2013 Global aviation is growing exponentially and there is a great emphasis on trajectory optimization to reduce the overall environmental impact caused by aircraft. Many optimization techniques exist and are being studied for this purpose.
Lawson, Craig P. +2 more
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Closed-loop bulk air conditioning: A renewable energy-based system for deep mines in arctic regions
International Journal of Mining Science and Technology, 2020 With depletion of shallow deposits, the number of underground mines expected to reach more than 3 km depth during their lifetime is growing. Although surface cooling plants are mostly effective in mine air-conditioning, usually secondary cooling units ...
Ali Fahrettin Kuyuk +2 more
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IEEE Access, 2021 In addition to the importance of safety in civil aviation, the significance of cybersecurity in the aviation sector cannot be ignored, and this fact has often been highlighted owing to frequent cyber-attacks that denigrate victim(s) and also lead to ...
Ahmed Abdelwahab Elmarady, Kamel Rahouma
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The impact of global environmental change on transport in Malta [PDF]
, 2015 This study addresses the impact of global environmental change, speci fically on transport in the Maltese Islands, with special attention to the economic implications of changes on: (i) employment, (ii) product or service growth/decline, (iii ...
Attard, Maria
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