Results 51 to 60 of about 11,681 (284)

Numerical Investigations of the Aerothermal Performance of Modern Turbine Blade Tip Geometries at Design and Off‐Design Conditions and Under Stationary and Moving Shroud

Heat Transfer, Volume 54, Issue 5, Page 3193-3207, July 2025.
ABSTRACT High‐pressure turbine blade tips operate under extreme thermal stress, generating significant aerodynamic losses that must be continually optimized to improve engine efficiency and durability. This study uses computational fluid dynamics (CFD) to investigate the aerodynamic and thermal behavior of advanced turbine blade tip configurations ...
Kheir‐Eddine Arrif, Zakaria Mansouri, Salaheddine Azzouz   +2 more
wiley   +1 more source

Smoke Diffusion Characteristics for Smoke Generator Based on Turbojet

Nanjing Hangkong Hangtian Daxue Xuebao
Based on the discrete phase model in the simulation software FLUENT， the smoke diffusion characteristics under high-speed jet action of a smoke generator powered by a turbojet engine are calculated.
CAO Guangzhou, REN Rui, SUN Hongliang
doaj   +1 more source

Automation of Predictive Maintenance: An Experimental Framework for Aircraft Landing Gear

Engineering Reports, Volume 7, Issue 6, June 2025.
Modern aircraft generate vast flight data, yet limited domain expertise hinders widespread predictive maintenance model development. This study compares traditional and automated machine learning (AutoML) models for Airbus landing gear health monitoring, showing AutoML's potential to streamline workflow, improve accessibility, and enable non‐experts to
Izaak Stanton, Kamran Munir, Ahsan Ikram, Murad El‐Bakry   +3 more
wiley   +1 more source

Numerical Analyses of Surge Process in a Small-Scale Turbojet Engine by Three-Dimensional Full-Engine Simulation

Aerospace
Surge is a typical aerodynamic instability phenomenon in the compressors of aeroengines. The surge can lead to severe performance degradation and even structural damage to the engine and the air vehicle, making it a longstanding critical concern in the ...
Mengyang Wen, Heli Yang, Xuedong Zheng, Weihan Kong, Zechen Ding, Rusheng Li, Lei Jin, Baotong Wang, Xinqian Zheng   +8 more
doaj   +1 more source

Ramjet Compression System for a Hypersonic Air Transportation Vehicle Combined Cycle Engine

Energies, 2018
This report assesses the performance characteristics of a ramjet compression system in the application of a hypersonic vehicle. The vehicle is required to be self-powered and perform a complete flight profile using a combination of turbojet, ramjet and ...
Sasha Veeran, Apostolos Pesyridis, Lionel Ganippa   +2 more
doaj   +1 more source

Recent progress of direct ammonia fuel cells: from materials to transportation applications

Rare Metals, Volume 44, Issue 6, Page 3686-3708, June 2025.
Graphical Abstract AbstractAmmonia is a promising zero‐carbon alternative fuel. Direct ammonia fuel cells (DAFCs), as an efficient ammonia‐fueled power system, have an extremely high application value in the field of transportation for decarbonization.
Yi Huang, Ji‐Hong Feng, Yue Yi, Fei Duan, Xin‐Hua Liu, Guang‐Yu Tian, Jun Gu, Hai‐Dong Bian, Jun Li   +8 more
wiley   +1 more source

Research on Carbon Footprint Reduction During Hydrogen Co-Combustion in a Turbojet Engine

Energies
The paper presents experimental studies on the effect of co-combustion of aviation kerosene with hydrogen in the GTM400 turbojet engine on the change in the carbon footprint generated by the engine in relation to its standard operation without hydrogen ...
Bartosz Ciupek, Łukasz Brodzik, Andrzej Frąckowiak   +2 more
doaj   +1 more source

Design, Synthesis, and Characterization of Lightweight Medium/High Entropy Alloys—A Review

Engineering Reports, Volume 7, Issue 5, May 2025.
Lightweight high‐entropy alloys (HEAs) offer exceptional properties like low density, high strength, and thermal stability, making them ideal for aerospace and automotive applications. The paper explores their design, synthesis, and characterization, emphasizing their potential for high‐performance application in aerospace and automotive industries ...
Fainah Madewu, Nicholus Malatji, Mxolisi Brendon Shongwe, Tawanda Marazani, Lehlogonolo Rudolf Kanyane   +4 more
wiley   +1 more source

Orbiter/launch system [PDF]

, 1981
The system includes reusable turbojet propelled booster vehicles releasably connected to a reusable rocket powered orbit vehicle. The coupled orbiter-booster combination takes off horizontally and ascends to staging altitude and speed under booster power
Jackson, L. R., Martin, J. A., Small, W. J., Weidner, J. P.   +3 more
core   +1 more source

Reduction of nitric oxide emissions from a combustor [PDF]

, 1980
A turbojet combustor and method for controlling nitric oxide emissions by employing successive combustion zones is described. After combustion of an initial portion of the fuel in a primary combustion zone, the combustion products of the primary zone are
Craig, R. A., Pritchard, H. O.
core   +1 more source