Results 71 to 80 of about 166 (139)

An Experimental Investigation to Use the Biodiesel Resulting from Recycled Sunflower Oil, and Sunflower Oil with Palm Oil as Fuels for Aviation Turbo-Engines. [PDF]

Int J Environ Res Public Health, 2021
Cican G, Deaconu M, Mirea R, Ceatra LC, Cretu M.   +4 more
europepmc   +1 more source

Integration Challenges of Turbine-Powered UAVs: Thermal, Structural, Acoustic, and Operational Perspectives

Technologies
Unmanned aerial vehicles (UAVs) increasingly demand higher flight speeds, longer endurance, improved payload capacity, and greater operational flexibility across a wide range of applications.
Raluca Andreea Roșu, Emilia Georgiana Prisăcariu, Oana Dumitrescu   +2 more
doaj   +1 more source

Assessment of a regulatory measurement system for the determination of the non-volatile particulate matter emissions from commercial aircraft engines. [PDF]

J Aerosol Sci, 2021
Kinsey JS, Giannelli R, Howard R, Hoffman B, Frazee R, Aldridge M, Leggett C, Stevens K, Kittelson D, Silvis W, Stevens J, Lobo P, Achterberg S, Swanson J, Thomson K, McArthur T, Hagen D, Trueblood M, Wolff L, Liscinsky D, Arey R, Cerully K, Miake-Lye R, Onasch T, Freedman A, Bachalo W, Payne G, Durlicki M.   +27 more
europepmc   +1 more source

A Review of Micro Gas Engines for UAV Propulsion: Fundamentals and Emerging Technologies

Drones
The rapid expansion of Unmanned Aerial Vehicle (UAV) applications in both civilian and military sectors has intensified the demand for propulsion systems capable of delivering higher speed, increased endurance, and improved payload capacity.
Emilia Georgiana Prisăcariu, Raluca Andreea Roșu, Oana Dumitrescu, Romeo Robert Ciobanu   +3 more
doaj   +1 more source

Large-Eddy Simulation on the Aerodynamic and Thermal Characteristics in a Micropipe of the Hypersonic Engine Precooler. [PDF]

Micromachines (Basel), 2022
Zhang J, Zou Z, Wang Y.
europepmc   +1 more source

Transient Behavior in Variable Geometry Industrial Gas Turbines: A Comprehensive Overview of Pertinent Modeling Techniques. [PDF]

Entropy (Basel), 2021
Hashmi MB, Lemma TA, Ahsan S, Rahman S.
europepmc   +1 more source

Design Optimization of a Gas Turbine Engine for Marine Applications: Off-Design Performance and Control System Considerations. [PDF]

Entropy (Basel), 2022
Machmudah A, Lemma TA, Solihin MI, Feriadi Y, Rajabi A, Afandi MI, Abbasi A.   +6 more
europepmc   +1 more source

Combined Methods in Preliminary Micro Scale Gas Turbine Diffuser Design – a Practical Approach

Journal of Applied Fluid Mechanics, 2018
Micro scale gas turbines are low cost, simplified versions of full scale jet engines. A unique feature of their design are centrifugal compressor impellers that are selected from automotive low cost, high quality turbocharger components.
M. Czarnecki, J. Olsen
doaj  

A Novel Curve-and-Surface Fitting-Based Extrapolation Method for Sub-Idle Component Characteristics of Aeroengines

Aerospace
The component characteristics of an aeroengine below idle speed are fundamental for start-up process simulations. However, due to experimental limitations, these characteristics must be extrapolated from data above idle speed.
Yibo Cui, Tianhong Zhang, Zhaohui Cen, Younes Al-Younes, Elias Tsoutsanis   +4 more
doaj   +1 more source

CFD simulation of updrafts initiated by a vertically directed jet fed by the heat of water vapor condensation. [PDF]

Sci Rep, 2022
Abshaev MT, Abshaev AM, Aksenov AA, Fisher IV, Shchelyaev AE, Al Mandous A, Wehbe Y, El-Khazali R.   +7 more
europepmc   +1 more source