Results 91 to 100 of about 542,371 (346)
Analysis and evaluation of an integrated laminar flow control propulsion system [PDF]
Reduction of drag has been a major goal of the aircraft industry as no other single quantity influences the operating costs of transport aircraft more than aerodynamic drag. It has been estimated that even modest reduction of frictional drag could reduce
Dewitt, Kenneth J., Keith, Theo G., Jr.
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Carbon Energy, EarlyView.Traditional carbon materials show limited high‐temperature oxidation resistance, which becomes pronounced above 673 K and significantly restricts their practical applicability. To address this challenge, enhancing polarization loss and leveraging its negative temperature dependence to offset the temperature‐induced increase in conductance loss are ...
Yang Li +9 more
wiley +1 more source
Turboprop cargo aircraft systems study [PDF]
The effects of using advanced turboprop propulsion systems to reduce the fuel consumption and direct operating costs of cargo aircraft were studied, and the impact of these systems on aircraft noise and noise prints around a terminal area was determined.
Hewell, J. G., Jr. +5 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Thermal charging cells (TCS) face two main challenges that limit their practical applications: 1) Still lacking the systems suitable for operation under higher temperature environments, and 2) there are limitations in the self‐sustaining performance of continuous discharge under temperature differences, which holds critical significance for the real ...
Tingting Meng, Yimin Xuan, Yunjie Xiong
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Investigation of porous surface on second mode in hypersonic boundary layer
AIP AdvancesThe second mode is the main instability factor in hypersonic flow and shows the characteristics of acoustic disturbance. The stabilization effect of a porous surface on the second mode in a hypersonic boundary layer is studied according to the acoustic ...
Jiaji Yang, Xinjie Qiu, Zhongyang Qi
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Heat transfer in aerospace propulsion [PDF]
Presented is an overview of heat transfer related research in support of aerospace propulsion, particularly as seen from the perspective of the NASA Lewis Research Center.
Gladden, Herbert J. +2 more
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Noise, Vibration, and Harshness (NVH) Challenges in Hydrogen Internal Combustion Engine Vehicles
Energy Science &Engineering, EarlyView.ABSTRACT This paper presents a state‐of‐the‐art literature review on noise, vibration, and harshness (NVH) in hydrogen‐fuelled internal combustion engines. Studies published between 2011 and 2025 were screened, covering fundamental flame physics, test‐bench work, and recent prototype vehicles.
Krisztián Horváth
wiley +1 more source
HydrogenHydrogen propulsion technologies are emerging as a key enabler for decarbonizing the aviation sector, especially for regional commercial aircraft. The evolution of aircraft propulsion technologies in recent years raises the question of the feasibility of
Daisan Gopalasingam +2 more
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An AD100 implementation of a real-time STOVL aircraft propulsion system [PDF]
A real-time dynamic model of the propulsion system for a Short Take-Off and Vertical Landing (STOVL) aircraft was developed for the AD100 simulation environment.
Drummond, Colin K., Ouzts, Peter J.
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Hybrid-electric propulsion for automotive and aviation applications [PDF]
, 2014 In parallel with the automotive industry, hybrid-electric propulsion is becoming a viable alternative propulsion technology for the aviation sector and reveals potential advantages including fuel savings, lower pollution, and reduced noise emission ...
Friedrich, C, Robertson, PA
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