Results 51 to 60 of about 359 (186)

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

Simulation and Experimental Investigation of Low‐Speed Centrifugal Pump Coupled With Vertical Ultra‐Low‐Head Turbine for Small‐Scale Irrigation

Engineering Reports, Volume 8, Issue 3, March 2026.
From the reviews, a new concept of a low‐speed centrifugal pump (LSCP) driven by a vertical ultra‐low‐head hydro turbine (VULHT) was designed and tested on simulation and physical setup. It was performed with a 1.8 m delivery head, concluding as inefficient. For ultra‐low‐head conditions, different than centrifugal action is recommended.
Raj Kumar Chaulagain, Pratik Ghimire, Saugat Ojha, Pratik Bhusal, Ankit Gautam   +4 more
wiley   +1 more source

The optimization of a jet turbojet engine by PSO and searching algorithms [PDF]

Journal of Applied Science, Engineering, Technology, and Education, 2018
The turbojet engine operates on the ideal Brayton cycle (gas turbine) and consists of six main parts: diffusers, compressors, combustion chambers, turbines, afterburners and nozzles. Using computer code writing in MATLAB software environment, exergy analysis on all selected turbojet engine components, exergy analysis on J85-GE-21 turbojet engine for ...
openaire   +3 more sources

Identification of Missing Knowledge in MBSE System Models Using Graph‐Based Machine Learning

Systems Engineering, Volume 29, Issue 2, Page 133-149, March 2026.
ABSTRACT The design and development of complex aerospace systems pose significant challenges due to their growing complexity. Iterative design processes, guided by formal specifications, strive to refine initially vague characteristics through multiple stages.
Esma Karagoz, Olivia J. Pinon Fischer, Dimitri Mavris   +2 more
wiley   +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

Trustworthy Federated Learning for Industrial IoT: Balancing Robustness and Fairness via Blockchain‐Based Reputation

Artificial Intelligence for Engineering, Volume 2, Issue 1, Page 67-77, March 2026.
This paper proposes Block‐FairFL, a Trustworthy Federated Learning framework empowered by Blockchain, to address the dual challenges of security and fairness in deploying AI for industrial engineering. ABSTRACT The integration of artificial intelligence into the industrial Internet of Things is pivotal for predictive maintenance and autonomous control.
Hui Li
wiley   +1 more source

Analysis of the Matching Line of between Turbine and Compressor in a Turbojet Engine

Diyala Journal of Engineering Sciences
Turbojet engines are now being given serious consideration owing to the high thrust power that they can deliver. The challenge that has arisen for the producers and designers of these engines relates to the problem of matching the compressor and the ...
Seyyed Kazem Yekani, mahdi nami khalilehdeh, Arash NourbakhshSadabad, Ali Sharifi   +3 more
doaj   +1 more source

Remaining Useful Life Prediction in an Aerospace Engine: A Multivariable Fuzzy Time Series Classification Approach

Expert Systems, Volume 43, Issue 2, February 2026.
ABSTRACT Failures in safety‐critical systems such as aircraft engines pose severe economic and societal risks. This study introduces a novel Remaining Useful Life (RUL) prediction method uniquely combining diverse techniques. Specifically, the proposed methodology integrates fuzzy time series analysis with sliding window segmentation and Multinomial ...
Luiz Rogério de Freitas Júnior, Frederico Gadelha Guimarães   +1 more
wiley   +1 more source

Experimental Evaluation of Electric Powertrain System for Unmanned Aerial Vehicles

Engineering Reports, Volume 8, Issue 1, January 2026.
Electric Powertrain Performance Metrics and Selection Workflow for UAVs. ABSTRACT With the growing use of unmanned aerial vehicles (UAVs) in both civil and military applications, optimizing electric powertrain systems is essential to enhance endurance, efficiency (η$$ \eta $$), and mission adaptability.
Srikanth Goli, Dilek Funda Kurtuluş, Imil Hamda Imran, Taiba Kouser, Abdulrahman Aliyu, Luai M. Alhems, Azhar M. Memon   +6 more
wiley   +1 more source

ISWO-LADRC: Improved Spider Wasp Optimization Algorithm-Based Rotational Speed Control for Micro-Aero-Engine

Aerospace
Rotational speed is a key performance parameter of aero-engines. As an indispensable parameter in control systems, rotational speed has received widespread attention.
Huigui Long, Kui Chen, Zhuojie Nong, Haozhong Huang   +3 more
doaj   +1 more source